Computer Networking is a collection of computers which are connected by wireless transmissions of various designs and technologies for the use of transferring data or information between the computers or users.it is a system which is connected to share information and resources as a peer-to-peer or a client server.

Computer is important to us because we can overcome these obstacles in an effective usage of information technology, computer networks are necessary. They are a new kind (one might call it paradigm) of organization of computer systems produced by the need to merge computers and communications.