2. Computer Network : Network computer has been used for a system that uses computers and devices on a single (stand alone). Later, the computer was connected together within the organization. To enable data sharing. Or share a printer And the systems and services . (client-server system) by a service (server) and services (client).
When Internet use is widespread . Just have to keep the location of users with that information so that others can know is that such data . And access to it Call this system The same network (Peer to Peer network: P2P network).