NETWORK & ITS TYPES Networking is the process by which two or more computers are linked together for a flawless communication. There are about eight types of network, which are :- LAN [LOCAL AREA NETWORK] WLAN[WIRELESS LOCAL AREA NETWORK] WAN[WIDE AREA NETWORK] MAN[METROPOLITAN AREA NETWORK] SAN[STORAGE/SYSTEM AREA NETWORK] CAN[CAMPUS/CLUSTER AREA NETWORK] PAN[PERSONAL AREA NETWORK] DAN[DESK AREA NETWORK]
LAN [ local area network ] Connects networking devices with in short area, e.g. small offices, home, internet cafes etc. Uses TCP/IP network protocol for communication between computers. Can be control and administrated by single person or organization. WAN [ wide area network ] WAN cover large distance for communication between computers. Internet is the best example of WAN, which covers the entire earth. Uses network protocols like ATM, X.25, and Frame Relay for long distance connectivity.
WLAN[wireless local area network] A LAN based on wireless network technology, mostly referred as Wi-Fi. No wires are used, but radio signals are the medium for communication. Wireless network cards are required to be installed in the systems for accessing any wireless network around. MAN[metropolitan area network] Is not mostly used, but has its importance for some government bodies and organizations on larger scale. It falls in between LAN and WAN. Covers large span of physical area than LAN but smaller than WAN, such as a city.
SAN[storage area network] Pan[personal area network] Used for data storage and it has no Used for communication among use for most of the organization but computer devices. data oriented organizations. Can be used for communication Connects servers to data storage among the personal devices or for devices by using Fiber channel connecting to a higher level network technology. and internet. CAN[campus area network] DAN [desk area network] A networking, spanning with multiple A multimedia workstation based LANs but smaller than MAN. around ATM interconnect. Mostly used in relatively large All communication between universities or local business offices peripherals and even between CPU and buildings. and its main memory is achieved by sending ATM cells through a switch fabric.