What is the most indispensable hardware device in a computer network?

The most indispensable hardware device in a computer network is communication equipment. A computer network is a system that uses communication lines to connect geographically dispersed computer systems and communication equipment with independent functions in different forms, and realizes resource sharing and information transmission with fully functional network software and protocols; a computer network consists of Transmission media and communications equipment.

#The operating environment of this article: Windows 7 system, Dell G3 computer.

The most indispensable hardware device in a computer network is communication equipment.

Computer network is also called computer communication network. The simplest definition of a computer network is: a collection of interconnected, autonomous computers that share 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 components include 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.

Related recommendations: "Programming Video"

The above is the detailed content of What is the most indispensable hardware device in a computer network?. For more information, please follow other related articles on the PHP Chinese website!