Basic concept of computer network

Basic concept of computer network.

Computer networking refers to interconnected computing devices that exchange and share resources with each other..

The network device use a system of rules called communication protocols,transmit information over physical or wireless.

Different types of computer network 7 types. Personal area network (PAN) Local area network (LAN) Wireless local area network (WLAN) Metropolitian area network (MAN) Wide area network (WAN) Storage area network (SAN) Virtual private network (VPN).

Switch Hub Router Bridge Repeater Modem Gateway Access point.

History of computer network. The first computer network in 1969. The first computer network was made by ARPANET. For the defance system. Later on its become a internet..

What is ARPANET. The Advanced Research Projects Agency Network (ARPANET), the forerunner of the Internet, was a pioneering long-haul network funded by the U.S. Department of Defense's Advanced Research Projects Agency (ARPA)..

Hub. A hub is the most basic networking device that connects multiple computers or networking devices.

Switch. On a network a switch is a hardware device that filters and forwards network packets but is often not cable of more ..

Router. A router is a device that connect two or more packets switched network sub-network..

Gateway. A gateway is a node (router)is a computer network a key stopping point for data on its way to learn..