computer network is

What is a computer network?

Computer network refers to the connection of multiple computers and their external devices with independent functions in different geographical locations through communication lines. The management of network operating systems, network management software and network communication protocols A computer system that realizes resource sharing and information transfer under and coordination.

Definition classification

In a broad sense

Computer network is also called computer communication network. The simplest definition of a computer network is: a collection of interconnected, autonomous computers for the purpose of sharing resources. If this definition is used, the early terminal-oriented networks cannot be regarded as computer networks, but can only be called online systems (because many terminals at that time cannot be regarded as autonomous computers). But as hardware prices fall, many terminals have a certain degree of intelligence, so the strict boundaries between "terminals" and "autonomous computers" are gradually lost. If a microcomputer is used as a terminal, according to the above definition, the early terminal-oriented network can also be called a computer network.

In addition, from a logical function point of view, a computer network is a collection of computer systems that use communication lines to connect multiple computers for the basic purpose of transmitting information. A computer network consists of transmission media and communication equipment.

From a user's perspective, a computer network is defined as follows: there is a network operating system that can be automatically managed by the user. It calls the resources called by the user, and the entire network is transparent to the user like a large computer system.

A more general definition is: using communication lines to connect geographically dispersed computer systems and communication equipment with independent functions in different forms, and realizing resource sharing and communication with fully functional network software and protocols. information transfer system.

Generally speaking, a computer network is a system that interconnects computers distributed in different geographical areas with specialized external devices using communication lines to form a large-scale and powerful system, so that many computers can communicate with each other conveniently. Information, sharing hardware, software, data information and other resources. Simply put, a computer network is a collection of many autonomous computers interconnected by communication lines.

The simplest computer network has only two computers and a link connecting them, that is, two nodes and a link.

A computer network is a collection of autonomous computers interconnected through lines. To be precise, it is a collection of independent computers distributed in different geographical locations. A system that connects capable computers, terminals and their ancillary equipment with communication equipment and communication lines, and configures network software to realize computer resource sharing.

A computer network is a large number of independent but interconnected computers that work together to complete computer tasks. These systems are called computer networks.

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