Computer network system is the use of communications equipment and lines will be different geographical, functional independence of multiple computer systems interconnected to fully functional network software for network resource sharing and information delivery systems. Computer via the Internet to achieve communication between computers, enabling information sharing software and equipment resources and collaboration between computer systems and other functions, its essential character that provide a high degree of sharing between computers of various resources, to achieve easy exchange of information and exchange of ideas.
Features computer network system
　　Computer network system is a network of hardware and software components of the network. In the network system, the hardware selection plays a decisive role on the network, and the network software is a tool to tap the potential of the network.
　　① The main purpose is to achieve the establishment of computer networks to share computer resources. Computer resources mainly refers to computer hardware, software and data.
　　② interconnected computers are distributed across multiple separate "autonomous computer" different geographic locations. Either locally networked computers that provide services, can also provide network services for remote users.
　　③ Follow common networking protocol networked computer.