Computer Networking: What You Have To Know
Computer networking, more commonly referred to as datacom or data communication is the practice of linking two or more computer systems together to exchange data. Computer networking is recognized as a branch of computer science, IT, telecommunications and/or computer engineering since it heavily relies on the theory and practical application of these mentioned fields.
There are three types of computer networks to be exact the internet, intranet and then the extranet.
- The Internet - is a global system of networks of computers that are interconnected. These networks make use of Internet Protocol Suite which is either TCP or IP, which serves billions of computer users around the world.
- The Intranet - unlike the internet, the intranet is an exclusive computer network. Although the intranet makes use of Internet Protocol technologies, the data is secured within the organization and not shared to the whole world.
- The Extranet - on the other hand is actually an expansion of a company's intranet. Its primary purpose is to allow users from outside the company such as vendors, partners, and suppliers to gain access to certain information and data.
Below are a few of the many ways of networking computers:
- Local Area Network - or more commonly abbreviated as LAN, is a small network of computer systems in a small area. One example of LAN is a network of computers in a building.
- Metropolitan Area Network - or MAN is just like LAN. The only difference is that MAN is employed in a larger scale like cities or states.
- Wide Area Network - or WAN is a far larger network compared to MAN and is used to cover larger geographic areas.
- Wireless LANs and WANs - are just like WAN and LAN and the only real difference is the fact that they are wireless.
In computer networking, there are lots of ways to interconnect computers such as the use of coaxial cables, optical fibers, and even through power lines. But as technology advances there are better ways to do this such as wireless technology which include Bluetooth and also Wi-Fi.
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