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Thursday, October 28, 2010

Computer Network, Systems, and Database Administrators Are in Demand


If you're looking for a fast-paced career that combines technology with creativity, check out the field of computer network, systems, and database administration. This dynamic career path reflects the increasing number of computer networks in business today.

In the workplace, computers and computer networks have become an integral part of everyday life. Nearly everyone who works in an office has a computer, and big companies may have thousands of workstations, each with a computer terminal. These computers don't just sit on desks like little islands; they need to be linked together into one seamless operating system. The ways that computers are linked together include local-area networks (LAN), wide-area networks (WAN), network segments, and Internet and intranet systems. Networks can be very complex, and creating a network of computers is a task that must be performed by highly qualified personnel.

Network and computer systems administrators design, install, and support an organization's computer network systems. Network and computer systems administrators work in a wide variety of organizations including professional offices, government organizations, small businesses, and large corporations. They analyze problems, maintain a company's network hardware and software, and monitor networks to ensure their functionality. Administrators may plan, coordinate, and implement network security measures, and they may gather data to identify customer needs and then use the information to identify, interpret, and evaluate system and network requirements.

Systems administrators ensure that the design of an organization's computer system allows all of the components, including the network, the computers, and software, to work properly together. They are often responsible for maintaining the network's efficiency, and they monitor and adjust the network's performance. They continually survey the current computer system to determine future network needs, troubleshoot problems reported by users and by automated network monitoring systems, and make recommendations for future system upgrades.

When the computers in the sales office crash, or when the finance people can't access their networked spreadsheets, or when the warehouse cannot access the intranet to track a shipment, the company can become paralyzed. A network systems administrator is the person who can, and must, resolve these network issues. It's an important position.

Education and training are key. A bachelor's degree is required for many network and computer systems administrator positions. In addition, many employers will demand that applicants have specialized computer network training of the type that may be offered by a career college. The best way to explore your career training opportunities is to log onto a reputable online college directory and compare computer training programs. Choose the ones that are right for you and request free information from the schools. This will allow you to make the best choice for your career education.

Here are some of the program areas that are key to this career field:

? Computers and electronics - Knowledge of circuit boards, processors, chips, electronic equipment, and computer hardware and software, including applications and programming.

? English language - Knowledge of the structure and content of the English language including the meaning and spelling of words, rules of composition, and grammar.

? Mathematics - Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their applications.

? Administration and management - Knowledge of business and management principles involved in strategic planning, resource allocation, human resources modeling, leadership technique, production methods, and coordination of people and resources.

The career outlook is excellent. According to the U.S. Bureau of Labor Statistics (BLS), in the current decade from 2008 to 2018 employment of computer network, systems, and database administrators is expected to increase by 30 percent, which is much faster than the average for all occupations. Demand for computer network administrators is expected to increase as companies continue to invest in new technologies.

Compensation can be generous. According to the BLS, as of May of 2006, the median annual earnings of wage-and-salary network and computer systems administrators was $62,130. Not bad!

If you're looking for a challenging and rewarding career, check out computer network systems career training. It may open a new door to a bright future.








Thinking about training for a new career in computer network, systems, and database administration? To make the best decision, you need the right information. Log onto http://www.Education-For-Careers.com and compare colleges. Get information about career training programs, degrees, online education, financial aid opportunities, job placement services, and much more.


Wednesday, October 27, 2010

Connecting Lines - Computer Networking Explained


In a nutshell, computer networking is basically a cluster of computers linked together in a way that it can transmit data and share resources. These sets of connections do not necessitate that the computers bear the same operating systems (OS); it does not even require that similar types of gadgets be used. A perfect example is a personal data assistant (PDA). One may connect a PDA to a laptop over a network. Even kitchen appliances like the internet enabled refrigerator uses networking to activate its surfing functions.

How Is Networking Done?

There are various methods to link computers and other gadgets to a network. And among the plethora of ways and means, the most common networking method is the use of cables. The market provides an assortment of cables from copper-wired to fiber optics each with its advantages and disadvantages.

Copper Wire: Unshielded Twisted Pair Cable (UTP)

The UTP is one of the frequently utilized cables for a local area network (LAN) connection, which is essentially linking a few computers within a small geographical area (thus the name, LAN). Going back to the UTP, this is composed of two unshielded and insulated copper wires coiled and twisted together to diminish electrical interference. This type of cable is often opted due to its flexibility, easy maintenance and low cost. The downside, it can (and will) possibly receive severe blows from electrical interference.

Fiber Optics

Data is exchanged by sending voltages along the wire. But for fiber optics, the data is transmitted through light pulses. While the UTP has copper, fiber optics has threadlike strands of glass, or silica. The process goes like this: the laser translates digital signals into pulses of light and conveys it down the series of glass strands. Fiber optics offer rapid data correspondence, though this speed comes with a price, a pocket burning price. With that said, this kind of connection is often seen being utilized by huge internet service providers (ISP) and data centers, not in office or home networks.

Network Topology: Bus Network

Simply put, network topology is the physical formation of the network. And the bus network is the most straightforward among the various network topologies. Let us begin with the bus. All the machines link up to a linear transmission channel, or the bus.

In operation, when a computer sends off data through the bus, all connected machines can see the data, otherwise known as packet. These packets possess pieces of information tagged as packet headers. And these headers, in turn, reflect the recipient or to which computer or machine the data is intended for. The bus inspects the header: if it is for that computer then the whole packet is recognized and received, but if it is not, it will be merely ignored.

The Downside: One at a Time

Unfortunately, the bus can only handle a single data at any given time. In here, two is a crowd. Imagine what could happen if three computers in the network simultaneously transmit data. Well, you will certainly have a few network problems if this collision happens. Speaking of collision, if and when two computers concurrently send data, the main computer (or the first one that notices the collision) will transmit a blocking sign onto the bus. This will trigger a standstill among the linked computers preventing any further data exchange.

Network Interface Cards (NIC)

NICs usually control the 'to and fro' or the transmission of packets across the wires bridging the computers in a single network. It also provides a venue of communication among the computers.

Hub

Hub is intended for small-scale computer networking. The problem with this is that it does not sort packets, meaning the data may be sent to the wrong recipient. Another is that the data will be open for everyone in the network. Security wise, this is not the way to go.

Router

To speed things up, this is a network device that diffuses data packets between two networks bearing different protocols. Yes, it is that blinking box that allows you to connect to the web.

There you go. This is simply scratching the surface of networking. You may opt to scour the internet for more information.








Benedict Yossarian is specialises in internet marketing. Benedict recommends Comm store for networking hardware and Cat5 Cable. For IT training [http://www.nhnorthernireland.com/] Benedict recommends New Horizons Learning Centres


Tuesday, October 26, 2010

Computer Network Overview


Computer networking or data communication is a most important part of the information technology. Today every business in the world needs a computer network for smooth operations, flexibly, instant communication and data access. Just imagine if there is no network communication in the university campuses, hospitals, multinational organizations and educational institutes then how difficult are to communicate with each other. In this article you will learn the basic overview of a computer network. The targeted audience of this article is the people who want to know about the network communication system, network standards and types.

A computer network is comprised of connectivity devices and components. To share data and resources between two or more computers is known as networking. There are different types of a computer network such as LAN, MAN, WAN and wireless network. The key devices involved that make the infrastructure of a computer network are Hub, Switch, Router, Modem, Access point, LAN card and network cables.

LAN stands for local area network and a network in a room, in a building or a network over small distance is known as a LAN. MAN stands for Metropolitan area network and it covers the networking between two offices within the city. WAN stands for wide area network and it cover the networking between two or more computers between two cities, two countries or two continents.

There are different topologies of a computer network. A topology defines the physical layout or a design of a network. These topologies are star topology, bus topology, mesh topology, star bus topology etc. In a star topology each computer in a network is directly connected with a centralized device known as hub or switch. If any computer gets problematic in star topology then it does not affect the other computers in a network.

There are different standards and devices in computer network. The most commonly used standard for a local area network is Ethernet. Key devices in a computer network are hub, switch, router, modem and access point etc. A router is used to connect two logically and physical different networks. All the communication on the internet is based on the router. Hub/Switch is used to connect the computers in local area network.

Hopefully, in this article you may have learnt that what a computer network is, how important it is in our lives, what are different network devices, standards, topologies and communication types.








B. Bashir manages this website Networking Tutorials and regularly writes articles on various topics such as Computer Networking, Network Troubleshooting Tips Wireless Networking, Computer Hardware, Certifications, How Tos, Network Security Guide and computer tips.


Computer Networking Schools Produce Qualified Technicians


A penchant for computers and acquired technical abilities are desirable attributes for future computer networking technicians. Computer networking schools offer an education in the hands-on processes of computer networking. Students learn to configure routers and switches, and install wiring, as well as skills in maintenance and network diagnostics.

Computer networking schools offer professional training at many levels. Entry-level students can opt for a computer networking certification or a career diploma; they may further their education and obtain an associate's degree. For the computer networking professional, a bachelor's degree or master's degree can greatly improve employment outlook.

A good computer networking college will cover all aspects of computer technology to prepare students to compete in the vast world of informational technology. Potential employment opportunities for graduates include positions in computer science, computer information systems, network administration, network systems engineering, network service technology, network analysis and programming, network information systems management, electrical and computer engineering, communications, telecommunications, and many other computer-related areas.

Computer networking has become one of the major career fields in today's modern business world, and there is a constant need for qualified computer networking professionals. If you like working with computers and are you seeking a career in computers, a computer networking school is the right choice for you!

To learn more about the exciting and promising field of Computer Networking, and to choose the right Computer Networking School for you, look for more in-depth information and resources on our website.

DISCLAIMER: Above is a GENERAL OVERVIEW and may or may not reflect specific practices, courses and/or services associated with ANY ONE particular school(s) that is or is not advertised on SchoolsGalore.com

Copyright 2006 - All Rights Reserved

Michael Bustamante, in association with Media Positive Communications, Inc. for SchoolsGalore.com

Notice to Publishers: Please feel free to use this article in your Ezine or on your Website; however, ALL links must remain intact and active.








Michael Bustamante is a staff writer for Media Positive Communications, Inc. in association with SchoolsGalore.com. Find Schools, Colleges, Universities, Vocational Schools [http://schoolsgalore.com/categories/2/schools.html] and Online Courses [http://schoolsgalore.com/categories/4/online_courses.html] at SchoolsGalore.com; meeting your needs as your educational resource to locate schools.


Monday, October 25, 2010

The Critical Nature of Professional Computer Network Security


In a world of ever-evolving and increasingly sophisticated Internet threats, computer network security has become an unmanageable necessity for many small businesses and homeowners.

It is more important now than it has ever been to put the needs of one's network into the hands of a highly skilled and experienced professional.

Even the small home network can benefit and save money by turning to a PC technician who has the proper software and tools for the job.

Proper computer network security takes the burden off our shoulders, and protects our small business and home networks from all threats.

Consider that these threats can expend far more energy attacking our systems than we can spend defending them.

When one considers the ever-expanding array of network threats, it is clear that we must allow specialists to manage our defense.

How else can we have confidence that all of our precious information is secure?

Consider the following evolving Internet-based threats:

Worms & Viruses

In addition to being the original form of malware and predating the Internet, viruses are still the most common and dangerous form of security threat.

Once they gain access to the network, they begin to spread until the network is disabled, compromised or both.

The fortunate aspect of worms and viruses are that they require user intervention in order to introduce themselves to the systems.

This means that with proper and professional security and protocols in place, a business can provide themselves with invulnerability to these types of attacks.

Phishing

Phishing is a criminally fraudulent process of attempting to acquire sensitive information, such as credit card information, usernames and passwords.

Phishing attacks generally target individuals, but this does not mean that our businesses are safe from this type of threat.

Our employees are more mobile, and more connected to our business networks than ever.

A phishing attack that compromises the employee can lead to a compromise of the business' entire computer network security.

This is why it is critical that we use professional measures to protect our employees and, in turn, protect ourselves.

Packet Sniffers

Packet sniffers capture network data streams, thus allowing them to seize a business' sensitive information.

Packet sniffers are very difficult to detect, and they can gain access to the network through legitimate connection means.

In order to secure a network from this type of threat, every point within the network must have proper security protocols, and be able to transmit and receive encrypted communication.

A business must employ a network security specialist in order to implement a system such as this.

Securing All Components of Network Access Control

The common small business owner or homeowner does not appreciate the complexity of fully securing a network.

There are four primary phases:

? Authentication

? Enforcement

? Endpoint Security

? Management

Defend your business from all computer network security threats by hiring a network security consultant that will properly secure and define protocols for each of these phases. Network security is like a house of cards. If just one of these broad aspects fails, the entire structure falls apart.








Security is very important when it comes to saving your business computer network.

This is why it is very important to find a computer technology specialist to manage your company's computer network.


Sunday, October 24, 2010

Setting Up a Small Business Computer Network


How to Set Up a Computer Network for Your Small Business

Small business computer networking has become common practice in the current business world that relies so heavily on evolving technology. While it may seem like a daunting task, setting up network technology has become a do-it-yourself project that doesn't require hiring a techie or specialist. With the following information you can acquire the tools to set up your own business computer network.

The advantages of networking computers center on the concept of efficiency. A network allows you to make optimal use of your computers and tech devices, perhaps in ways you weren't even aware of. Networks promote the sharing of resources, whether those resources are files and software or even physical devices such as printers. The Internet connection itself is also shared by the range of computers employed. Setting up a network is one of the best small business ideas for improving productivity by creating a sense of community among both technology and employees.

The debate of wired versus wireless comes down to personal preference. Wireless equipment has become more popular due to lower prices and ease of use. The wireless approach allows a greater degree of freedom in the fact that you don't have to rely on cables or having your technical equipment in a certain area. That's not to say Ethernet (wired) networking is obsolete. Wired connections tend to more reliable and speedier than wireless, meanwhile remaining untouched by variables that tend to impact wireless connections.

The starting point of small business computer networking comes in your choice of operating system. Again, this has a great deal to do with personal preference. Windows 7/Vista/XP and Apple OS X are the standards and should serve you well, especially if you're already familiar with them. Each has built-in networking abilities that are easy to manage from a laptop to desktop computer. Outside of actual computers, you'll need some equipment. This includes a router (possibly two or more if setting up over a large area) and a few Ethernet cables. Wireless networks will require a cable to link your router to a central computer that will represent the server. This will link the router to your Internet connection, allowing external computers with wireless capabilities to connect to your LAN (local area network).

How do you keep your computer wireless network safe? Implementing a password may be a basic first step which will help weed out those attempting to illegally access your server. WEP and encryption software for businesses also serve as a further step for keeping outsiders from getting into your network. Much of this can be set up within the operating system. Additionally, you can use your browser security settings to prevent attacks on your server. Small business computer networking has become commonplace and should be embraced by those looking to make their business more efficient in a time where business and technology go hand in hand.









Saturday, October 23, 2010

Computer Network Management


Today it is almost inconceivable for a business not to have computers, whether it is a construction company or a high technology firm. When a business has more than one computer, they are almost always connected together in a local area network. These networks may be more or less advanced and therefore more or less costly.

Companies invest so much (in terms of both money and time) in a local area networks because there are many advantages that a local area network brings to a business and how it is administered.

Some businesses use a local area network in such a way they are highly dependent on it always working. If the company's network fails, then you may see all the employees chatting away in the corridors because they can't do their work. This means big losses for the company and causes stresses on the employees. All companies must consider their local area networks a vital asset and downtime must be avoided. This imposes huge demands on the network staff to keep such networks running almost 100% of the time.

The advantages of Computer Network Management

One of the main advantages of installing and maintaining LANs is the opportunity they create for better communication and cooperation between employees and customers.

Security considerations: Local Area Network security can be both a help and hindrance. Comprehensive security is beneficial because it provides a central and safe strategy for data access and disaster recovery. All information is protected by the design and implementation of the network security solution. On the other hand, interconnecting computers in local area networks creates a security risk, since doing so makes it technically possible for intruders to access many machines on the network at once.

Cost considerations: Installing a local area network is a relatively expensive project. Servers, cabling, switches, routers and software can all be expensive and should never be purchased without expert advice. Keeping the network operating and secure also requires a lot of resources and can be costly.

Surprisingly, a local area network can bring a number of cost savings. Sharing resources avoids the need to purchase equipment for each individual. Even more important is the security that a local area network can provide. Data loss could cost a business a great deal of money and in some cases, cause the business to shutdown altogether. Computer Network Management should require a consistent routine for data backups with regular checkups of data quality - a practice that will save a company huge sums in the event of a mishap.

Computer Network Management: preliminary analysis phases

The first phase of computer network management is to determine the source of the problem (a preliminary study that looks into several options of differing scope may be useful here) and defining it in a specification of requirements. Examples of what should be evaluated are different network operating systems, mail systems, and other applications. The choice of hardware components should also be evaluated. This phase is generally aimed at establishing what the system should do, not how it should do it.

Computer Network Management: design phase

The purpose of design phase is to determine how the requirements of the specification are to be met. The current approach to large, complex projects is to break them down into smaller, more manageable subprojects.

Computer Network Management: implementation phase

This phase involves the physical installation of the local area network. Cables are run, software is installed, and computers and other hardware are put in place.

Computer Network Management: integration and system testing phase

In this phase, commissioning of the network begins, and routines are adapted to users and the operating personnel. The system must be tested, both to ensure that the network meets the requirements set out in the specification and that it is stable enough to perform the central function it has in the organization.

Computer Network Management: operation and maintenance

Local area networks have complex operating routines. This is because there may be serious consequences when faults occur or unauthorized persons gain access to the system. Many companies have employees devoted solely to take care of running and maintaining computer networks. These system administrators may deal with network issues such as performance, reliability and security of both hardware and software.

Computer Network Management: tools

Although an organization may have computer administrators on site, they must also monitor the network more than eight hours a day. In fact, some of the worst trouble that arises with networks can happen during the night hours when nobody is using the network. With the right computer network management tools, your organization can receive the security of knowing that problems will be foreseen, prevented, and taken care of - and that your network administrator can be notified at a moment's notice, should anything go exceptionally wrong.








Frank Hughes is the Vice President of Technical Solutions at SecureMyCompany, Inc. Mr. Hughes has over 14 years experience in the IT industry, with the last 10 serving as the Senior Solutions Consultant for BellSoutions.net. Get more information on network management tools.

Frank Hughes hold several vendor certifications including Microsoft, Dell, Cisco, Sonicwall and many more. Mr. Hughes is a recognized expert in managed services including remote desktop managment, network monitoring and help desk software.


Friday, October 22, 2010

An Overview Of Computer Networks


My second degree, or should I say my second go through inside the education system was in networking. I'm a certified Novell and Microsoft engineer, not that I'm all that excited about the fact. Networking is actually pretty mindless work once you learn it. It's pretty much do it by the numbers based on what the customer wants. After you hook everything up the software installation is pretty straight forward. My 16 year old daughter could do it or as GEICO would say, a caveman could do it.

In this article I'm just going to cover the basics of what a network is and the types of networks. I'll go into more detail in later articles.

A network is simply a means for computers to speak to each other, or communicate with each other. With a network, computers can receive emails from each other, send files to each other, instant message each other and a variety of other things. This is something that we take for granted today but there was a time when networks were not so sophisticated and not all that efficient either.

There are basically two types of networks.

The simplest network is a LAN or Local Area Network. This is where all the computers in the network are located in one place such as an office building. Within this type of network you have 2 ways to connect.

The simplest way is peer to peer. This is where 2 or more computers are hooked up directly to each other. In other words if you have 5 computers you would have computer 1 hooked into computer 2 which would be hooked into computer 3 and so on. In this type of connection each computer is dependent on the other. So if computer 3 would go down then computers 1 and 2 would not be able to communicate or exchange information with computers 4 and 5 and visa versa. That is the main problem with a peer to peer network. Also in peer to peer networks the write process between computers leads to data corruption problems. This is not something they teach you in school but something you learn from experience.

The more common type of LAN connection is client server. This is where all the computers in the network are connected to each other via a central computer. This kind of connection does require more work in set up but is more efficient, carries data better and if one computer goes down the others aren't affected. However, should the server go down then all the computers on the network would be affected as far as their ability to get information from the other computers and the server itself. They, however, would still be able to do work locally on their own such as with a word processing program, unless the word processing program was located on the server. Then it would not be available. Usually, however, most applications are installed on each computer. What is most commonly lost when a server goes down is the ability to retrieve data that is common to everyone in the network, say an in house database of all employees.

The second type of network is a WAN or wide area network. This is where several LAN networks or even single computers are connected to a much larger network. A perfect example of a WAN is the Internet. This is where users from all over the world can interact with each other through email, chat rooms and instant messaging. WANs are enormous to say the least and are very intricate in their design, requiring hubs from all over the world to stay connected. One hub goes down and it can affect connections for millions of people though there are protocols instituted to reroute connections if a hub does go down.

The above is a very simplified overview of computer networks. In future articles I'll go into detail on the hardware and software required to set up these networks and some of the finer points. Stay tuned.








Michael Russell

Your Independent guide to Networking [http://networking.for-home-and-office.com/]


An Overview of the Computer Network Devices & Components


A Computer network is comprised of different devices to share, transmit, and boost the signal, voice and data. Network devices or components are the physical parts connected to a network. There is a large number of the network devices and are increasing daily. The basic network devices are: Individual Computers, Server, Hub, Switch, Bridges, Routers, Modems, Printers, DSL Modems & Routers, Gateways, Network Interface Cards, Cabling & Wireless access point. The following is a overview of each of these network devices.

INDIVIDUAL COMPUTERS: The personal computer is usually a desktop computer, a work station or a laptop. The personal computers are most widely used in any organization or for personal use. The individual computers are the most common types of the microcomputers.

SERVER: A server is a computer on a network, which process request and is used to share the data and resources among the other computers in a network. A server stores all the necessary information and provides the different services like, workstation computer's logon access, internet sharing, print sharing, disk space sharing etc. There are different types of servers e.g File and print server, database server, proxy server, Fax server, backup server etc. A database server stores all the data and software, which may related to the certain database and it allows other network devices to access and process the database queries. A file server is used to store the data of any user on the network and a print server manages one or more printers in a network. Similarly a network server is a server that manages the network traffic.

NETWORK INTERFACE CARD: Network interface cards are attached with the computer or other network devices and are used to provide the connectivity between the two computers. Each network card is specifically designed for the different types of the network like Ethernet, FDDI, Token Ring and Wireless Networks. The Network card operates on the first and second layers of the OSI models i.e Physical layer and datalink layer specifications. NIC basically defines the physical connection methods and the control signals that provides the timings of the data transfer over the network.

HUBS: Hub is a simplest network device. The function of the hub is broadcasting i.e data is forwarded towards the all ports of a hub, regardless of whether the data was intended for the particular systems in the network or not. Computers in a network are connected to a hub with a twisted pair (CAT5) cables. There are two types of the hubs. 1. Active Hubs. 2. Passive Hubs.

SWITCHING HUB: The Switching hub (also called "switch" is the most advance shape of the basic hub. In a basic hub all the computers are connected with the hub and the speed of the network is defined by the slowest computer network card connected. For example if you have 10/100 Mbps cards in a network and only one card of 10Mbps speed then the system cannot run faster than the 10 Mbps. Now if you have a switching hub in a network, it will allow all the faster connections in the network to remain at the higher speed and still interact with the 10Mbps system.

SWITCHES: Switch is a intelligence device than hub. Switch is a layer 2 device. Swith provides the same function as a hub or a bridge but it has the advance functionality of connecting the two computers together temporarily. Switch contains the switch matrix or switch fabric that can connect and disconnect ports. Unlike hubs, switch only transmit or forwards the data to the destined computer and it does not broadcasts the data to all its ports.

MODEMS: Modems are the devices, which are used to translate the digital data into the analog format and vice versa. It performs the two main functions. Modulation and demodulation. A modulated data can travel across the conventional telephone lines. The modem modulates the signals at the sending end and demodulates at the receiving end. Modems are required for different types of the access methods such ISDN, DSL and 56K data modem. Modem can be the internal devices that plug into the expansion slots in a system or can be external devices that plug into the serial or USB ports. In Laptops, PCMCIA cards are used for this purpose and many new laptops having the built in integrated modems. The specialized devices are designed for use in the systems such as handheld computers. In ISPs where the large scaled modems are required, rack-mounted modems are used.

ROUTERS: Routers route the data between two logically and physically different networks. A Router has the capability to determine the destination address for the data and hence provides the best way for the data to continue its journey. Router gets this capability through its software called routing software. Unlike Switches and Bridges, which use hardware configured MAC address to determine the destination of the data, router uses logical network address such as IP address to make the decision in determining the destination of the data.

GATEWAY: A gateway performs the function of translating the data from one format to another format without changing the data itself. A gateway can be a device, system, software. A computer with two NIC cards can function as a gateway. Router acts as a gateway e.g a router that routes the data from a IPX network to a IP network is technically a gateway. The same can be said of translational switch converts from a Ethernet network to a token ring network.

CABLES: There are two most common types of the cables. 1. 10baseT and 10base2. 10baseT is a four paired cable. 10baseT has further two types 1. UTP (unshielded twisted pair) and 2. STP (shielded twisted pair. STP is most secure cable covered with the silver coated twisted paper to protect the cable. On the other end Thin 10base2 looks like the copper coaxial cabling that often used to connect TV sets and VCR. 10baseT/Cat5 cables are most commonly used cables to connect the computers. It has the connector, (like a telephone connector) called RJ45 connector.

Twisted pair cables are ideal for the small, medium or large networks.

My recommendation for using cables for networking is to use 10baset/Cat5 cables








Submitted by:

Fiza
http://www.theitlibrary.com


Thursday, October 21, 2010

Computer Networking - Higher Education Programs Online


Computer networking has become an integral part of everyday life. Networks are used by multitudes of people from the businessmen that share information with each other to the teenager uploading photos to a social networking site. The role of online education in computer networking is to teach students to keep networks working and usable. Education is obtainable from numerous online universities that offer several concentrations.

The connection between computers that share information defines the industry of computer networking. This is a complex system that needs the constant work of specialists. Online training encompasses many aspects of the field, which includes network design, troubleshooting, maintenance, and information protection. Based on career trends, having an education is quickly becoming a standard due to continually advancing technology. Students learn how to be specialists that provide daily support, train individuals to use a system, and develop a network for a company. These are only a few areas that are covered through courses in a program.

Education is available through concentrations that include:Computer Network EngineeringComputer Network ManagementNetwork SupportNetwork SystemsEach available training option provides students with the knowledge needed to carry out specific functions. Online colleges give students the ability to work through programs at the associate's, bachelor's, and master's degree level. Graduate level training at the master's degree is not a career requirement but students will fare better in their career with the advanced knowledge gained. Earning an associate's or bachelor's degree is the educational standard for the industry's professionals.

Problem solving is one of the main roles of a computer networking professional. Students that participate in an online program in network support will gain the necessary skills for this function. Specific coursework explores how to create, design, install, manage, and fix a network when it stops working or needs updated software. Online courses help students develop their computer, technology, and management skills. Subjects on computer programming, data security, and software integration are a few topics discussed inside a program.

Computer network management programs are another area available that teaches students a core role of the industry. Students learn the process of configuring, establishing, and managing a system of networks. The software and hardware of the industry is evaluated from a management standpoint. Students learn to oversee and maintain local area networks and wide area networks. Network security, remote access, data communication, and computer architecture are some online courses students can expect to complete as a regular part of education.

The available programs prepare students to enter a career as a computer networking specialist. An accredited online education in each concentration area gives students a foundational knowledge of the field while building a particular set of skills. Full accreditation is provided by agencies like the Accreditation Commission of Career Schools and Colleges of Technology (http://www.accsc.org) to programs that meet certain criteria and offer a quality education. Students can utilize the accessibility of the Internet to research the correct program and online college for their objectives. Find a program and beginning training.

DISCLAIMER: Above is a GENERIC OUTLINE and may or may not depict precise methods, courses and/or focuses related to ANY ONE specific school(s) that may or may not be advertised at PETAP.org.

Copyright 2010 - All rights reserved by PETAP.org.








Renata McGee is a staff writer for PETAP.org. Locate Online Computer Networking Schools as well as Campus Based Computer Networking Schools and Colleges at PETAP.org, your Partners in Education and Tuition Assistance Programs.


Wednesday, October 20, 2010

Computer Networking Fundamentals


In the past, when two persons were willing to share data between each other, they were relying on movable disks such as floppy disks and CD-ROM. These ways of transmitting data between remote computers are often difficult especially if the files will be transmitted very often.

Because of the above difficulties in transmitting data across movable disks, the idea of networking two or more computer has been arisen. Instead of transmitting the files across movable disks, the computers are connected to each other by cables through ports on the computer. When someone needs to transmit the data to another computer, he simply can share the files he needs to transmit across the network. This way no movable disk is needed and the matter is easier.

When talking about computer networking, one must differentiate between the many types that exist for the network. The computer network can be classified according to the geographical area they occupy or according to the manner they will behave when sharing and accessing data between the computers in the network.

Let us first see how they are classified according to the geographical area. The meaning of this classification is how much the network will occupy or simply what the size of the network is. There are three types for any networks according to this classification. They are the LAN, WAN, and MAN. The LAN (Local Area Network) has the smallest size with respect to the other types. The LAN can occupy a room, a floor, a building such as company, or at most a group of adjacent buildings. The MAN (Metropolitan Area Network) can occupy a whole city or even a while state. On the other hand, the WAN can occupy a whole country, group of countries, or even the whole world.

The second classification is according to the data distribution across the network and how the computers that are connected to each other are treated. There two types of networks according to this classification. The first one is peer to peer network. The meaning of this classification is that all computers in the network are treated as equal. Thus the size of the data on one computer can be equal to the size on another computer. Also the processing and storage power of the all devices are equal. Thus there is no computer on the network that is higher in value than the other computer. Hence the name peer to peer network.

The second type of networks according to the above classification is the client-server network. In this type, the matter is different in that not all computers are equal in value. At the least, there is one computer (that is called the server) that has much processing power and storage power. Therefore the data is stored on that computer to be shared across the network. Every computer that needs some data that is shared across the network can take it from the server only. This is because all computers other than the server have less sizes of memory and also processor power.








Youssef Edward is an Electrical Engineer and he is the owner of tips-made-easy.info site. He studied too much in computer networking and cisco devices. Learn much more about computer networking and its hardware below

Networking Hardware and Computer Peripherals
Computer Networking and Connecting to the Internet


Tuesday, October 19, 2010

Types of Computer Networks


There are different types of Computer Networking that you may need for your home or office. To begin with you have the option of a wired or wireless computer network. These types of networks differ. A wired computer network will have copper or fiber optic cabling running between computers while a wireless network uses radio waves and/or microwaves to maintain communication channels.

A client/server network works by using client devices, typically PCs with network software applications installed that request and receive information over the network. The server device will usually store files and databases and includes more complex applications like Web sites. These devices often feature high-powered central processors, more memory and larger disk drives than the client devices. Two examples of client-server systems include Web browsers and servers.

In addition to these types of networks there are also types of area networks. These are categorized by their scope or scale. Some area network types include:

o LAN

o WAN

o WLAN - Wireless Local Area Network - a LAN based on WiFi wireless network technology

o MAN - Metropolitan Area Network - a network spanning a physical area larger than a LAN but smaller than a WAN, such as a city. A MAN is typically owned an operated by a single entity such as a government body or large corporation.

o CAN - Campus Area Network - a network spanning multiple LANs but smaller than a MAN, such as on a university or local business campus.

o Storage Area Network - connects servers to data storage devices through a technology like Fibre Channel.

o System Area Network - links high-performance computers with high-speed connections in a cluster configuration.

LAN and WAN were the original categories of area networks but through the evolution of technology we have been forced to keep adding more and more types due to the ever-changing field.

A LAN network will connect devices over a relatively short distance. This may include a building, school, or home that will contain a single LAN. Sometimes one building will contain a few small LANs and on the other hand a LAN may span a group of nearby buildings. A WAN spans a large distance. The Internet is the largest WAN as it covers the Earth. A network device called a router will connect LANs to a WAN. These are typically not owned by any one organization like LANs but are under a distributed ownership and management system.








Geeks In Route Inc. - A Computer Networking Company based in Florida specializing in wireless networks - network support - network configuration and hardware installation. GIRI offers complete Computer Networking Services including hardware, software, connections, installation and maintenance throughout the USA.


Monday, October 18, 2010

Computer Networking Schools For the Logical Thinker


If you consider yourself a logical thinker with a penchant for computers, you might want to check out computer networking schools. The business world of today is seeking computer technicians with good training in network technology, and you could soon qualify for a variety of interesting jobs with some college-level training in computer networking.

There are a lot of directions you can go to gain a computer education, and networking is just one of the many branches of computer science. Technology has grown by leaps and bounds in the past twenty years, and it is important that computer technicians stay on top of the game. The best computer networking schools will offer computer training that is up-to-date and curriculums that are constantly reevaluated to maintain relevancy. It is also important that computer courses be taught by instructors who are working professionals.

The field of computer networking involves configuring cables and wireless networks between various electronic devices such as computers, printers, and wireless communications devices. It is important that you take some time to assess your innate abilities and your goals for the future before enrolling in any of the computer networking schools in the US and Canada. You will want to be sure that you would enjoy working in an office environment and that you would be willing to solve computer problems and maintain network efficiency in a team environment. Today's businesses depend heavily on network engineers to troubleshoot complicated computer network systems and interconnect a variety of devices so that data and information flows easily and freely along the network.

You can start out your computer network training at the entry level by taking a class in networking and getting certified. Or, you might begin by taking a vocational computer networking course leading to an Associate of Science Degree (AS) in Computer Science. These credentials would serve to get your foot in the door with many companies, such as an individual branch of a government agency or a small business. Once you have achieved the AS, you will be eligible to enroll in computer networking colleges to expand your computer studies to the level of Bachelor of Science (BS), Master of Science (MS), and even Doctor of Computer Science (PhD). At the higher levels, you will specialize in one or more areas of computer sciences and really become an expert in the field. Of course, salaries and benefits will also rise accordingly.

If you are ready to start learning computer networking, we urge you to make direct contact with computer networking schools [http://www.schoolsgalore.com/categories/3/computer_networking_vocational_schools.html] on our website. It could be the best connection you will ever make!

DISCLAIMER: Above is a GENERAL OVERVIEW and may or may not reflect specific practices, courses and/or services associated with ANY ONE particular school(s) that is or is not advertised on SchoolsGalore.com.

Copyright 2007 - All Rights Reserved by Media Positive Communications, Inc.

Notice to Publishers: Please feel free to use this article in your Ezine or on your Website; however, ALL links must remain intact and active.








Michael Bustamante is a staff writer for Media Positive Communications, Inc. Find Computer Networking Schools, Colleges, Universities, Vocational Schools, and Online Schools at SchoolsGalore.com, your resource for higher education.


Sunday, October 17, 2010

Computer Network Management Online Schools


An online education in Computer Network Management prepares the graduate to maintain an efficient computer system for all types of businesses. A distance learning degree in Computer Network Management qualifies the graduate to provide network security, performance and reliability.

Computer Network Management online schools impart the advanced technical knowledge that managers need to keep computer network-related activities running smoothly. Through a distance learning course, Computer Network Management students learn to evaluate, design, implement and administer computer network systems within an organization or between organizations.

An online course in Computer Network Management teaches students to analyze and evaluate a client's network requirements, ensure compatibility with other network features, perform preventive maintenance, design and test network proposals, implement security measures, manage growth and development, and monitor and report on performance and usage.

Online schools allow students to learn Computer Network Management at their own pace, without forfeiting current employment. Students can obtain the required college degrees such as Associate, Bachelor or Master of Science in Computer Network Management.

The earning potential for Computer Network Management professionals is virtually unlimited. Depending on the level of education and experience, Computer Network Managers can earn an annual salary of $50,000 to $90,000 or more.

If you are interested in learning more about Online Computer Network Management Schools and other programs of study, please search our site for more information and resources.

DISCLAIMER: Above is a GENERAL OVERVIEW and may or may not reflect specific practices, courses and/or services associated with ANY ONE particular school(s) that is or is not advertised on SchoolsGalore.com.

Copyright 2006 - All rights reserved by SchoolsGalore.com, in association with Media Positive Communications, Inc.

Notice: Publishers are free to use this article on an ezine or website, provided the article is reprinted in its entirety, including copyright and disclaimer, and ALL links remain intact and active.








Michael Bustamante is a staff writer for Media Positive Communications, Inc., in association with SchoolsGalore.com. Visit our Distance Learning Directory and find Distance Learning Schools and other Schools, Colleges, Universities, and Trade Schools at SchoolsGalore.com; your educational resource to locate schools.


Computer Networking Services


A computer network is the practice of linking two or more computing devices together for the purpose of sharing data. Networks are built with a mix of computer hardware and computer software. This interconnected system will share services and interact through a communications link. If data is being sent over the system then the individual computers must follow a set of common communication rules in order for the data to arrive at is correct destination. This is also vital for the systems to properly understand each other otherwise data will not be received. These rules are known as protocols.

So, in order for a computer network to be set up properly four things must be present: two or more systems, something to share (such as data), a communications link or physical pathway, and a set of rules for communication or protocols.

Wireless computer networking uses radio waves and/or microwaves to maintain open communication channels between computers. This version of computer networking is a more modern approach and is an alternative to wired networking. The advantages of wireless computer networking are that this involves mobility and the elimination of a copper or fiber optic cabling running between computers. However, a wireless computer network has the potential to have radio interference due to weather, other wireless devices or obstructions.

If you are unsure what type of computer network you would like you can have a trained professional come to your home, business, or other location and have them recommend what you need depending on what you are using your network for. You should always hire a trained computer specialist when setting up a computer network as there may be complications and it can be very difficult to learn how to set up a computer network by yourself.








Geeks In Route Inc. - A Computer Networking Company based in Florida specializing in wireless networks - network support - local area networks - network configuration and hardware installation. GIRI offers complete Computer Networking Services including hardware, software, connections, installation and maintenance throughout the USA.


Saturday, October 16, 2010

Easy to Understand Definition of a Computer Network


By definition a network is a group or system that interconnects components together. A network of retail stores, for example, implies some sort of relationship between the stores. A railroad network suggests that the tracks interconnect at different points. And a computer network interconnects computers.

By far the most famous computer network in the world is the Internet. The Internet is, in fact, a collection of smaller networks that are interconnected together - a network of networks if you can imagine that.

But computer networks don't necessarily have to be large or complex. By definition, the smallest possible computer network would include just two interconnected computers. The interconnection can be achieved using a cable or by wireless technology. Whatever the medium, as long as the computers can communicate together they are part of a network.

Surprisingly, the Information Technology industry doesn't define networks by size, rather, by location. Computers that are interconnected in a small geographical location such as a home or an office are said to be in a LAN (Local Area Network). A LAN can have two computers or two thousand computers.

Conversely, computers that are connected across a wide geographical area such as between cities or countries are said to be in a WAN (Wide Area Network). Strictly speaking a WAN actually interconnects LANs. Five computers in a New York office are in a LAN, however, the New York office also connects to an Office in Chicago who hosts ten other computers. All together, that network is said to be a WAN spanning New York to Chicago. But individually each office is a LAN in its own right. One LAN in New York and one LAN in Chicago. This is why we say that strictly speaking a WAN interconnects LANs.

A description of how the network is wired together can be provided using a physical network topology. Network topologies are used to describe the different ways to connect computers together. A bus topology, for example, describes computers connected across a common wire in a linear fashion. A star topology describes computers connected to a common central device such as a switch. Other types of common topologies include ring topology as well as mesh and partial mesh topology.

But possibly the most important working components of a computer network are the protocols. A protocol is a set of rules. In order to communicate correctly, computers must talk the same protocol so that they understand what is being received and know how to send information in return. The IT industry has successfully established TCP/IP as the dominant network protocol across the world. The standardization of TCP/IP in computers has allowed the internet to thrive because is provides a common language that computers can use to communicate with each other.








Networking careers are sought after and rewarding. Visit us to discover IT books and world class Network Training Solutions for all levels.

Andres Villalva B.IT, AssDip(Eng), CCNP, MasterCNE is a telecommunications specialist with a passion for ethical, intelligent and successful IT career development.


Friday, October 15, 2010

Computer Network Engineering Education


Modern society is changing at the speed of light - are you watching it pass you by or are you moving forward in obtaining your computer network engineering education? If you are one of the many candidates interested in a computer network engineering education, then a vocational school may be a great start to catching up and moving with the pace of current technology. Designed to give students essential training and computer networking skills, vocational computer network engineering schools teach students how to configure, design, install and maintain network systems.

Students who are working on their computer network engineering education can anticipate comprehensive coursework in computer applications and writing, communications, and technical trouble-shooting and resolutions. Additionally, the general curriculum often incorporates desktop computing, which teaches students about basic system architecture, as well as computer hardware and software, directory structure and processes, fundamental computer terminology, user administration and web page design, linking, media, and many other relevant topics.

A good computer network engineering education enables graduates to attain a rewarding information technology career such as an entry-level network and data communication analyst, which according to the US Bureau of Labor Statistics is the second-fastest growing occupation in the United States!

Successful candidates who have completed their computer network engineering education may transfer their credits to a higher education facility, such as a college or university, and go on to attaining a bachelor or doctorate degree in computer network engineering.

If you are interested in a Computer Network Engineering Education [http://www.schoolsgalore.com/categories/3/computer_network_engineering_schools.html] , apply to a vocational school or trade school, or even an online school, today!

DISCLAIMER: Above is a GENERAL OVERVIEW and may or may not reflect specific practices, courses and/or services associated with ANY ONE particular school(s) that is or is not advertised on SchoolsGalore.com.

Copyright 2006 - All Rights Reserved

Michael Bustamante, in association with Media Positive Communications, Inc. for SchoolsGalore.com

Notice to Publishers Please feel free to use this article in your Ezine or on your Website; however, ALL links must remain intact and active.








Michael Bustamante is a staff writer for Media Positive Communications, Inc. in association with SchoolsGalore.com. Find Vocational Schools, Trade Schools, Colleges, Universities, and Online Schools at SchoolsGalore.com, your educational resource to locate schools.


Thursday, October 14, 2010

What Hardware Is Needed for a Computer Network?


The hardware that you will need for setting up your computer network will be the computers, the interface cards, peripherals and whatever is needed to allow data-processing as well as for communicating between the network computers.

File servers are needed. They are rather quick computers with a lot of RAM and a fast network card as well as storage. The operating system for the network is on this computer and if data files and/or software applications need to be shared they are here as well.

File servers must have a microprocessor that is at least 800 megahertz, preferably more. The hard drive will need to have storage of 120 gigabytes or more. A RAID is needed to keep data if there is a problem with the disk. A tape unit for backup which can be a Zip, JAZ, DAT or CD-RW drive is needed.

Another requirement will be several expansion slots and a network interface card (preferably a fast one). Also needed for networking at the very least 512MB of RAM. A network interface card (NIC) is going to provide the connection needed between the computers and the network. All the computers that are connected to the network are workstations.

Workstations will be the computers that have been connected to the network. The standard workstation is the computer which has been specifically arranged with the cables, the networking software and a network interface card. The computer does not require a floppy disk drive since files can be kept on the file server. Practically any computer can be a network workstation.

What else is needed for the computer network? A router is needed for translating the information to all the networks. This can be compared to a bridge. The router chooses the best way to send a message using the destination address and the origination of the address. It sends the message by routing it to keep it from colliding with other messages. The routers know the computers' addresses and the other routers on the network as well as the bridges. They even know which sections are busier than others and redirect the data until the sections are not so busy.

Repeaters are a necessity due to signals losing their strength when they are passed using a cable. The signal may need boosted and this is where a repeater comes in handy. It can transmit the signal by amplifying it and rebroadcast. The repeater can be a single unit. It can also be combined with a concentrator. This is necessary when the length of the network cable is longer than the standard for the cable used.

Providing a connection point that is central to the cables from peripherals, servers and workstations is a device called a concentrator. In computer networks often a twisted wire goes from each and every workstation to a central switch. The switches amplify the signal as it goes from one place to another. Rather than broadcasting network packets, switches or hubs as they are often called, memorise the computer's address and send the data to the right location.

So, there you have the many elements that are needed to connect a computer network. This hardware, when attached correctly will allow you to set up your network and start moving data.








Vincent Rogers is a freelance writer who writes for a number of UK businesses. For information about Networks, he recommends Prodec Networks.


Computer Networking


Brandon Douglas Bradshaw has studied IT and computer systems for many years and it have become his passion. In his studies she has discovered some very important foundational facts. Computer networks can be defined as an engineering discipline regarding the interaction between devices of computer and computer systems. Routing protocols, networking, routers and entire networking system over the internet services have their details defined in documents termed as RFCs (request for comments). Computer networking is also considered as a discipline of computer science, telecommunications, computer engineering and information technology. It deals with practical and theoretical applications of these engineering and scientific disciplines. There are three kinds of computer networks: 1. Internet 2. Intranet and 3. Extranet.

Generally a computer network is sets of various devices and computers that are associated to each other having capability to send or receive data. Here is the list of different kinds of computer networks that Brandon Douglas Bradshaw is experienced with:

* LAN (Local Area Network): this is a small network deals with local and small regional area. Like a computer network covering a building.

* MAN (Metropolitan Area Network): This is medium size network deals with a city or state.

*WAN (Wide Area Network): This is a bigger network deals with large geographic area.

* WLAN & WWAN (Wireless LANs and MANs): These networks are the equivalent of the WAN and LAN in a wireless form.

There are all kinds of computer networks that are connected to each other to let the communication be done among various Medias like copper wire cable, optical fiber, coaxial cable, micro wave system, power lines and different wireless technologies. The devices regarding computer set-ups can be operated within a few meters or unlimited distances, depending on its range.

There are many organizations such as insurance companies, railways, hospitals, banks etc that needs real time processing of huge number of transactions via many computer systems in order to interact and communicate with each other via same network. Thus the installation procedure of an entire computer group is very important as well as sensitive also.








Overall, Brandon Douglas Bradshaw had discovered that in an ideal computer network the system, software and hardware must work together seamlessly. There are many software solutions and hardware solutions companies ready to serve you if you have any trouble with your own network system. A network security system with supported services should be applied to assist the whole computer network and keep the network safe from virus and spamming.


Wednesday, October 13, 2010

Uses of Computer Networks


Computer Networks are everywhere. From the distributed systems to the middle ware and to the world wide web, computer networking has proved to be improving in techniques to reach remote areas and applications to serve the purpose.

Business Applications: Resource sharing is one of the most popular use of computer networks in the business applications. For Instance, a printer is shared in a network and hence saves a lot of investment in hardware. The computers connected in a network can make use of the printer in the network instead of having separate printers for every computer. Scanners, Cd burners, Fax machines are few other resources which can be shared in a network. Email facility with the help of Outlook application has enabled communication among the members of the company in sending reports and analyzing data. There would be a server handling the requests of all the computers connected in the network. Clients pass the request and the server works on the request by giving the reply.
Home Networking: Computers are now a days used just for person to person communication with the help of Internet. Internet can be used to have remote access to the information, person - person communication as discussed earlier electronic commerce, Interactive entertainments like games. Interactive entertainments such as XBOX gaming online and online tutorials which used flash for interactive environment. Now a days, people are buying a computer just for the sake of checking their email which enables person to person contact. With the help of VPN ( Virtual Private Network) one can work and access of office data right from home. In peer -peer systems there is no client system. Every computer in a network is connected to every other computer through wire.
Mobile Users: With the advent of technology in improving protocols for better communication, WAP (Wireless Access Protocol is now being increasingly used to communicate in a network. There are two forms of wireless: Fixed Wireless and Mobile Wireless. Desktop computers in an office are neither fixed nor mobile wireless. A notebook computer used in a Hotel room with the help of Ethernet cable is an example of mobile wireless and not of fixed wireless. Networks in old unwired building is an example of typical fixed wireless and not of mobile wireless. Portable office or PDA for store inventory is a perfect example for fixed as well as mobile wireless technology being used. M-commerce is using mobile device for paying cash using credit cards and act as an electronic wallet.









Tuesday, October 12, 2010

Computer Network Management Schools Offer Network Training


The field of computers is vast, and there are many businesses looking to hire computer technicians with formal training from computer network management schools. Aspiring network engineers can get training in network systems management, and even obtain computer science degrees from schools for computer network management.

The definition of computer networking is to connect and interface computers, printers, wireless communications devices, and other electronic devices so they will share data and information within a specific network. While this is not a complicated concept, there is much to learn at computer network management schools before you can be qualified to provide network support.

Basic training in computer network management will bring you up to speed on the various hardware, software and technology involved in computer information systems. The course will cover math, science, computer programming, information technology, and much more. You will learn to comprehend the computer sciences, and to think logically so that you can ultimately configure efficient networking systems like a pro.

There are a variety of professional certificates and computer science degrees available from the best computer network management schools in the US and Canada. You might start out by seeking a professional certificate from a vocational school or trade school that offers computer network training. Or, you might want to commit to a two-year course in computer science leading to an Associate of Science degree (AA). Later, you can move on to a college or university where you can earn a Bachelor of Science degree (BS) or a Master of Science degree (MS) with a concentration in network management. If you really want to be an expert in every aspect of managing computer networks, you will want to achieve the pinnacle of all degrees in computer sciences, the PhD.

Get in on the network managing trend today by contacting a few selected computer science schools on our website today. They will send you all the information you need to get started on a new career in network managing.

DISCLAIMER: Above is a GENERAL OVERVIEW and may or may not reflect specific practices, courses and/or services associated with ANY ONE particular school(s) that is or is not advertised on SchoolsGalore.com.

Copyright 2007 - All Rights Reserved by Media Positive Communications, Inc.

Notice to Publishers: Please feel free to use this article in your Ezine or on your Website; however, ALL links must remain intact and active.








Michael Bustamante is a staff writer for Media Positive Communications, Inc. Find Computer Network Management Schools [http://www.schoolsgalore.com/categories/2/computer_network_management_schools.html], Colleges, Universities, Vocational Schools, and Online Schools at SchoolsGalore.com, your resource for higher education.


Monday, October 11, 2010

Computer Network Management Schools


Computer Network Management Schools teach students how to properly interface computers with users by using specialty devices. Students are taught how to facilitate and maintain computer network systems, and to apply this innovative technology and training toward the construction and maintenance of fiber optic networks, routers and servers.

Computer Network Management schools teach the basic, technical skills in network system administration, including setup and maintenance of multifaceted computer network systems, as well as computer applications and troubleshooting.

Computer Network Management schools offer certificates of completion, diplomas, and/or training certificates in a wide variety of specialty areas of network engineering and management. Many students opt to further their education by taking the skills learned at a computer network management school and applying them toward a professional degree.

After learning the essential skills in internet security and information services; UNIX; web servers and other computer network management skills, graduates are qualified to work in a broad spectrum of IT related fields. Generally, computer network management schools prepare professionals to enter the ever-expanding field of computer technology, including careers in help-desk support, computer repair, and network management.

If you would like to learn more about the exciting and promising field of Computer Network Management [http://schoolsgalore.com/categories/2/computer_network_management_schools.html], look for more in-depth information and resources on our website.

DISCLAIMER: Above is a GENERAL OVERVIEW and may or may not reflect specific practices, courses and/or services associated with ANY ONE particular school(s) that is or is not advertised on SchoolsGalore.com

Copyright 2006 - All Rights Reserved

Michael Bustamante, in association with Media Positive Communications, Inc. for SchoolsGalore.com

Notice to Publishers: Please feel free to use this article in your Ezine or on your Website; however, ALL links must remain intact and active.








Michael Bustamante is a staff writer for Media Positive Communications, Inc. in association with SchoolsGalore.com. Visit our Traditional School Directory and find Colleges, Universities, Vocational Schools, and Online Schools at SchoolsGalore.com; your educational resource to locate schools.


The Broad Categories of Computer Networking


For some people, the computer itself could be a scary topic, considering the fact around how complicated the machine is. Talking about computer networking could give a heart attack to such people. However, it is not as scary as it may sound.

Computer networking could be understood by separating the two words in the term. A "computer" as we know is a complex machine that helps us to process information. "Networking" refers to linking or connecting. Hence computer networking would simply mean getting two or more computers connected. When we say the word "connected" in this reference, we mean that one computer could be accessed through the other.

Broadly speaking there are two ways of connecting two or more computers. The first one is called the wired network and the other one is called the wireless network. Both of these are huge subjects to study and understand. However, in layman's language it could be said that when two or more computers are connected through wires it's called the wired network. And when they are connected without the wires through wireless router, it is known as wireless network. As the wired networks are limited to the area wherein the wire web is installed, similarly the wireless has range limitations. The number of machines that are on a network would ensure the speed of the network. More machines in a network would mean a slow network.

The various computer network systems could be - Personal Area Network; Local Area Network; Campus Area Network; Metropolitan Area Network; Wide Area Network; Global Network and most importantly internet, intranet or the extranet. The names are given to the network depending upon the arena they have. Like for example the campus area would mean the machines that are in a given physically limited campus are connected through the computer networking. This could be wired or wireless networking.

Internet could be understood as a global network system.








I'd like to share cool websites with more information on topics like Tech Seeker Computer Articles and Frame Structure of IEEE802.3 Protocols. Visit for more information.


Sunday, October 10, 2010

E-Commerce Supporting Technologies - Computer, Computer Networking, Internet, Internet Connectivity


E-Commerce as the word suggests means doing business on the internet or on-line. The scope of business may involve:

o selling hard goods on-line such as a phone, computer or shoes

o Electronic goods such as e-books, mp3 music, software, graphics or pictures

o selling ideas or services

To sell the goods the merchant has to have a website or a virtual store on the internet for him to sell the goods on line. A prospective customer finds that site, buys goods on it, pays owner using a credit card or via other mode. Merchant receives payment and deliver the goods and supports the customer. Practically, that's e-commerce in its simplest sense.

In between those e-commerce transaction a lot technology are involve to complete the sale. For instance, the merchant has to design and build a website developed using a complex programming language called HTML. Merchant has to register a domain name to identity his business on the internet. All information and products from his on-line store or business are encoded and stored on the merchant's computer server or hosted by a third-party web hosting company. In order for the customer to find the merchant's site, he needs a computer that is in turn connected to a system popularly known as the internet, for him to be able to visit the merchant's site.

The Personal Computer in relation to E-Commerce

A PC or Personal Computer is a computing device or tool built around a microprocessor. It has lots of different parts -- memory, a hard disk, a modem, etc...That work together. It is also called general purpose equipment. General purpose means that you can do many different things with a computer. You can use it to type documents, send e-mail, browse the Web and play games.

On each own, the computer can be used to expedite the processing and storing of information such as word processing. It can also be made to transmit and receive information from other computers. These computers can talk and exchange information from each other thru a common computer language or protocol. The PC is the most valuable and core-technology needed to drive E-Commerce and Internet Business.

Computer Network in relation to E-Commerce

Two or several computers can be physically linked and made to communicate with other computers with in a local network (LAN). The term use to describe this interconnection is called networking. Networking of computers can be made using either a wired (cable) or wireless (radio) type of connection. Usually, networking or the linking of computers is subject to the range or distance limitation because the signal and quality of communication will degrade as distance increases. Computer Networking is applied for most on-line internet business for an efficient and productive E-Commerce business.

The Internet in relation to E-Commerce

The internet is a system that connects computer networks. The system of internet enables the interconnection of computers all over the world. It allows your computer to get stored information from other computers far away.

The protocol (TCP/IP) or language when computer communicate in a network is similar to the one used on the internet. That is why computers around the world understand each other despite different maker and place of manufacture.

Lots of computers all over the world are stored with lots and lots of information. The internet system hooked them together. If you have access to the Internet, you can read, hear and view all this information from your own computer. The Internet is all the reason behind the existence of E-Commerce and without internet connectivity virtual on-line business will totally cease to exist.

Telecommunication in relation to E-Commerce

A different type of technology is needed to transmit information from one computer to another over long distances. Telecommunication companies come into the picture to service the requirement of connecting one computer network to another computer network using different kinds of transmission technology.

Telecommunication is a broad term as it also covers not only data communication such as the internet but includes voice telephony as well.

Telecommunication companies are driving internet businesses to achieve internet connectivity. Without them one could never put their business on-line as only telecom companies are able to link networks over very vast geographical distances.

Connectivity in relation to E-Commerce

Connectivity is a broader term than networking. Networking refers to the physical (wired) or virtual (wireless) connection between computers. Connectivity refers to the state of being connected. For instance, a computer can be sync to a phone, music player and other devices. Internet access or the state of being connected to the internet information super-highway is a classic example of connectivity.

Internet Connectivity is important both in urban and rural-remote regions of the world.

Some regions are suffering from lack of telecommunication infrastructure thus internet access service is very limited. In order to achieve internet connectivity, remote villages either use satellite link, wireless radio systems and long-range phone extenders. Some communities have established telecentres which serve as a communication hub and outside link to the rest of the world. All forms of connectivity including internet connectivity are helping push the envelope of internet business as a whole.

So you've read about e-commerce overview and its supporting technologies. Try to imagine and picture out how e-commerce is being practice and how important are those technologies to making it possible.








The author , Allan Amps is a telecom sales & marketing employee with passion and interest for rural, remote internet connectivity solutions, wireless gadgets and internet home-based business.

He recently established a website - http://www.tech-ware-tips-startup-internet-business.com and [http://www.advanced-multi-profit-site.com] with the aim of generating income out of his interest and passion. The goal is to reach those people yearning to start their own home-based business by providing valuable tips, guides and info of the best available solutions and programs that one can go into.


Saturday, October 9, 2010

Computer Networking Online


Want unlimited access to your online computer networking education program? Perhaps enrolling in an online school may be a good step toward your path of success! There is great demand for professionals who have earned their online diploma, certification or degree in computer networking. The more you know, the better chances are that you will be able to attain a lucrative and fulfilling computer networking career in a highly competitive workforce.

Today, students can take an online computer networking course to earn their certification or degree via comprehensive distance learning programs. Common computer networking online curriculums, in addition to basic software training, involve in-depth studies of network administration, design and security (from major technology organizations); network authentication applications and operating systems; software tools; technical aspects; and many more relevant subjects.

Persons who have successfully completed their online computer networking course (duration of course depends on individual commitment) can go on to earn higher level education degrees, and can anticipate obtaining a career as network administrators, network managers, network system engineers and security analysts; depending on academic level and experience.

Many of these online computer networking schools offer flexible coursework and affordability. A course in computer networking online is perfect for the self-starter eager to gain an edge in today's technologically advancing society.

If you are interested in learning more about Online Computer Networking Schools and other programs of study, please search our site for more information and resources.

DISCLAIMER: Above is a GENERAL OVERVIEW and may or may not reflect specific practices, courses and/or services associated with ANY ONE particular school(s) that is or is not advertised on SchoolsGalore.com.

Copyright 2006 - All rights reserved by SchoolsGalore.com, in association with Media Positive Communications, Inc.

Notice: Publishers are free to use this article on an ezine or website, provided the article is reprinted in its entirety, including copyright and disclaimer, and ALL links remain intact and active.








C. Bailey-Lloyd is a staff writer for Media Positive Communications, Inc., in association with SchoolsGalore.com. Visit our Distance Learning Directory and find Distance Learning Schools and other Schools, Colleges, Universities, and Trade Schools at SchoolsGalore.com; your educational resource to locate schools.


Friday, October 8, 2010

Computer Network Engineering Programs


Trouver des programmes d'ingénierie réseau informatiques aux États-Unis et au Canada. Futurs étudiants qui souhaitent travailler dans le domaine en constante évolution des technologies de l'information ont la possibilité d'appliquer à l'un des nombreux ordinateur réseau ingénierie des programmes, où ils peuvent atteindre des compétences cruciales à concourir dans cette profession en pleine expansion.

Dans les programmes d'ingénierie réseau informatiques, les élèves apprennent les compétences essentielles et des connaissances dans un vaste assortiment des applications informatiques, les logiciels et les méthodes de dépannage. Certaines des nombreuses études inclus dans le réseau informatique, ingénierie des programmes sont des instructions détaillées dans les systèmes d'exploitation réseau Microsoft Windows et PC de bureau, ainsi que de conception, d'installation et de configuration de réseaux informatiques à l'échelle mondiale, câblage d'ordinateur, sécurité réseau, gestion réseau, Internet Connexions réseau, protocoles, hébergement de page Web et maîtrise, entre autre sujet relatif.Étudiants dans les programmes d'ordinateur réseau ingénierie développent la pensée critique, de communication et de compétences de résolution de problème.

Tandis que la technologie écoles et collèges varient dans les programmes d'études, les étudiants qui s'inscrire dans un réseau informatique, ingénierie des programmes ont le potentiel pour gagner un diplôme, certificat ou différents niveaux de degrés; y compris un associé en sciences, en génie informatique réseau ou supérieur.En général, les diplômés de ces et d'autres cours de technologie d'information peuvent anticiper vaste carrière et les possibilités d'avancement ; en plus de perspectives de gains lucratives.(Bénéfice est basé sur l'expérience, l'éducation et des employeurs).

Parce que les logiciels réseau ingénierie efficacement visent à donner des étudiants les compétences essentielles nécessaires pour diverses carrières en génie informatique et d'autres informations métiers de l'information (TI), les possibilités de carrière existent comme les éditeurs de logiciels, conseils techniques, concepteurs de système d'ordinateur, services de gestion d'ordinateur, les administrateurs système ordinateur et plusieurs choix plus professionnel.

Trouver votre emploi de rêve !L'éducation au sein de la croissance rapide de laisser industries comme le massage thérapeutique, Cosmétologie, technologies de l'information, santé, affaires, et d'autres bien commencer !programmes scolaires de carrière près de chez vous.

Programmes d'ingénierie réseau ordinateur
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Le réseau CollegeBound
Tous droits réservés.

Mise en garde :Articles peut être republié gratuitement aux sites Web pertinents, aussi longtemps que le droit d'auteur et de la zone de ressources auteur sont inclus ; et tous les liens hypertexte restent intacts et active.








Boîte de ressource :CarolAnn Bailey-Lloyd - rédacteur freelance et Consultant Web pour HolisticJunction.com, en association avec CollegeSurfing.com - ressources pédagogiques pour les Programmes de génie réseau informatiques, Computer Education et autres écoles.


Thursday, October 7, 2010

Choisissez la meilleure solution de réseau de l'ordinateur pour vos petites et moyennes entreprises

Your business is growing. You've added 2 new staff members in the past year, and all 5 employees are complaining about the increasing difficulty of sharing files. Your billing database is on a computer which can only be accessed by your administrative assistant, and you are concerned about not having a centralized backup of the files being saved on each employee's computer. If this all sounds familiar, it may be time to implement a computer network.


In this discussion, we'll look at two main computer network solutions for small and medium businesses. We'll explore the pros and cons of each type so that you can decide which network might be the best solution for your business.


Network Basics


Networks begin when two or more computers are connected so that information can be shared. In order to connect to any kind of network, a computer requires a network card and CAT5 or CAT6 cables. (If the computer has a "wireless" network card, radio signals can be used in place of the cables.) A network also requires a piece of equipment called a switch, which acts as a central routing "hub" for the information being shared. A switch is kind of like a mail room in a large company. It makes sure the addressed messages get to the right recipient.


Peer to Peer Networks


The most basic type of network is a called a peer to peer network. This type of network consists of several computers which are connected to each other. The "network" consists of shared folders located on computers within the network. These folders are set to a "shared" status, so that other people connected to the network can access them. Each shared folder is accessed by the users of the network, who set up a certain drive letter (say H:) as a "pointer" to the shared folders on other computers. In addition, any printers connected to any computer can be shared to other network users.


Benefits of a Peer to Peer Network:


A peer to peer network is inexpensive to set up. It uses the built in networking capabilities of Windows XP Professional (or Vista Business), so no special software is needed. It allows for file and printer sharing, and can be an adequate choice for a very small office.
Limits of a Peer to Peer Network


Peer to peer networks are dependent upon the computer knowledge of each employee, as certain rules must be followed in order to minimize network interruptions. If a user shuts down his machine in the middle of the day, other users on the network lose access to the files in that machine's shared folder. In the picture provided above, the laptop might only connect to the network when an employee is not traveling. Any files stored on that laptop are not available (and may not be backed up) when that employee is out of the office. Network and data security are weak. Files are not centralized, so getting a back up of all critical files is more difficult. Ongoing tasks like anti-virus scanning and Windows updates are localized on each machine. Updating virus definitions and patches has to be done manually at each machine, which is time consuming.
Client Server Networks


A more common type of network is called a client server network. This type of network uses a central server and specialized network software. The server is dedicated and is only used to store files and run server tasks. The computers which connect to the server are called clients and these are the machines the company staff would use. The server acts as the "hub" of the network, and does most of the "behind the scenes" maintenance and storage. Common server network operating systems include Windows Small Business Server 2003 or 2008, Windows Server or Linux.


Benefits of a Client Server Network


The server stores all of the shared files for each user. The server runs the file backups which can be scheduled in the middle of the night, minimizing network interruptions. The server manages user security, and insures that all users who access the network are authorized to do so. The server manages printer sharing and acts as a central repository for the printer drivers and settings. The server manages other common tasks such as internet access, email routing, Windows updating and anti-virus definition management. The server can also share software applications out to multiple users. The server can also provide for an "Intranet", an internal website which holds shared company information such as news announcements, HR policies, training documents, and more. In short, a client server network provides for easier network administration, and provides a much more robust environment in which provide secure and manageable access to company data.


Limitations of a Client Server Computer Network


A server based computer network is more expensive to implement. Server computers are powerful machines with built-in redundancy and other hardware to provide data safety. Hence, they cost much more than a simple desktop computer. The server network software is also much more powerful, complicated, and must be installed correctly to run all of the required tasks, and so the cost is higher for both the software and installation charges. The server is a critical point of failure. If it goes down, the entire network comes to a halt. This drawback can be minimized with the installation of redundant drives in the server (so that if one fails, the others will still be working), and even a second server that can take over if the primary server fails completely. Cost then becomes the only issue.
Which Computer Network is Best For Your Business?


Peer to peer computer networks are reliant upon the computer users, so employee behavior is a major factor. Peer to peer networking could work for your business if you have the following:


Computer savvy employees whom you trust. Low employee turnover. Five or less employees. Newer desktop or laptop machines with lots of memory and hard drive space. A large capacity portable data storage unit for backing up files and taking them off site. Time and motivation to keep the computer patches and maintenance up to date.
A client server computer network is more secure, easier to manage, and would be a better solution for your business if the following is true:


You want to secure your company data and provide access to certain files and folders to only a few employees. Your business experiences high employee turnover. You have more than 5 employees. A secure, complete backup of all of your critical business data is needed. A central information repository for your employees would be helpful. You want to have a cohesive email solution using a single domain address (i.e., jack@yourcompany.com, megan@yourcompany.com).


Think of the cost of implementing a network as an investment in your business. As your business grows, implementing a computer network will help your employees share information and resources, and in the long run, will play a major role in the successful growth of your business.


Ellen Davis is the owner of Computer Sense, a website and computer consulting company in Cheyenne, Wyoming. You'll find more expert advice, PC tips and computer assistance on her website at http://www.sensible-computer-help.com