The principle purpose of this article is to analysis about Computer Network Technology. Nowadays computer network technology is very important for our modern life. We cannot move without this modern technology. Computer network is a situate of computers, printers and other tools that attach each other to share information and moving data through cables. Numerous users can print with the similar printers or use the similar software at the similar time. A computer that stores the major data and plays role as data center is called Server while computers that are linked to network and receive data from Server are called Workstations.