Sunday, March 13, 2016

What is network

Network is group of two or more computer systems linked together.  In other words,  computer to connect for each computers and exchange of information.  Type of network:
·         local-area networks (LANs): The computers are geographically close together
·         wide-area networks (WANs): The computers are farther apart and are connected by telephone lines or radio waves.
·         campus-area networks (CANs): The computers are within a limited geographic area, such as a campus or military base.
·         metropolitan-area networks MANs): A data network designed for a town or city.
·         home-area networks (HANs): A network contained within a user's home that connects a person's digital devices.  /Network Basics book/ Other, network type is cable and wireless.   And network isn’t only to connect two or more computers, That connection for all devices . We use printer, phone, tv etc. That is swap data. It is network.
History of Network.  First network connection is networks of computers included the military radar system Semi-Automatic Ground Environment. A further In 1960 the commercial airline reservation system semi-automatic business research environment (SABRE) went online with two connected mainframes. Network was developed rapidly.
Internet is big thing of Network. The Internet is also often referred to as the Net, as a short form of network. The Internet is the global system of interconnected mainframe, that use the Internet protocol suite (TCP/IP) to link billions of devices worldwide. The Internet has enabled and accelerated new forms of personal interactions through instant messaging, Internet forums, and social networking.
Network is everything. We uses internet and communication. It is big thing. But it Is all though on network. If we haven’t network, we haven’t internet,  tv, communication etc there all wasn’t. So all things that working on network. Network is important for ICT and all things.      
How network work. Devices swap data. That’s through cable or wireless. I think how network it is working.
           



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