What is the main purpose of establishing a computer network

The main purpose of establishing a computer network is to realize the sharing of computer resources; resource sharing means that multiple computers in the network or multiple users in the same computer use hardware and software resources at the same time. To achieve resource sharing, Must be coordinated and managed by the operating system.

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

What is the main purpose of establishing a computer network?

The main purpose of establishing a computer network is to share computer resources.

In a network, multiple computers or multiple users on the same computer use hardware and software resources at the same time. Usually, the resources required by multiple users at the same time always exceed the number of actual physical resources of the system. However, using logical (or virtual) resource allocation to realize resource sharing can better handle this contradiction and improve the efficiency of computer use. But it must be coordinated and managed by the operating system to avoid chaos.

There are two main methods: unified management and distribution by the operating system, which is suitable for multiple users in the same computer system; users notify each other, which is suitable for network systems.

Two basic principles of resource sharing:

1. The law of large numbers:

The law of large numbers says: if the number of users is large and they use resources The requirements are all sudden and random, so when all users are considered as a whole, the user's overall resource usage requirements become quite smooth, stable, and predictable.

2. Economies of Scale

Economies of scale say: when the resources and the number of users in a system increase in proportion at the same time, within a certain range, the larger the scale of the system, the greater the scale of the system. The system is more economical.

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