affiliate marketing

Wednesday 4 July 2012

Computer Networks


A computer network is a system for communicating between two or more computers and associated devices. It is an interconnection of computers for the purposes of sharing information and resources.
•A popular example of a computer network is the internet, which allows millions of users to share information
•Computer networks can be classified according to their size:
–Personal area network (PAN)
–Local area network (LAN)
–Metropolitan area network (MAN)
–Wide area network (WAN)

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