A network switch or switching hub is a computer networking device that connects network segments.
The term commonly refers to a network bridge that processes and routes data at the data link layer (layer 2) of the OSI model. Switches that additionally process data at the network layer (layer 3 and above) are often referred to as Layer 3 switches or multilayer switches.
Click this link to view video : http://www.youtube.com/watch?v=V2JVitiy4tQ
Computer Technology
Computer is an electronic device used in almost every field even where it is most unexpected. That is why this age is called as the era of IT. And now we cannot imagine a world without computers. It is made up of two things one is the hardware and other is software. These days computers are the tools for not only engineers and scientists but also they are being used by millions of people around the world.
Tuesday, November 9, 2010
Router
A router is an electronic device that interconnects two or more computer networks, and selectively interchanges packets of data between them.
Further info, please click :
http://communication.howstuffworks.com/convergence/router.htm
Cable Tester
A cable tester is an electronic device used to verify the electrical connections in a cable or other wired assembly.
Monday, November 8, 2010
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