In order to remain competitive and . . productive, many13; changes are affecting' the way organizations do 'business .13; One such change is the introduction .of Computer .Networks13; and Internetworking . This project document 'gives a brief13; introduction to the goals of computer networking, the basic13; concepts involved in the design and implementation of computer networks and their building blocks . It also, gives a brief introduction to some of the latest .technologies such as 'DDT, Frame Relay .' and Asynchranous Transfer Mode (ATM) .13; The aim of bringing out such a document is to have13; a concise form of the constituents of , .a .computer network in one single place rather t han .to browse around several text books and papers