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What are the important parts of a computer network?

Dec 07, 2020 am 09:47 AM
computer network

Computer network includes three important parts: communication subnet, resource subnet and communication protocol. The collection of equipment and software that implements network communication functions in a computer network is called the communication subnet of the network, and the collection of equipment and software that implements resource sharing functions is called the resource subnet; and the communication protocol refers to the completion of communication or services between entities of both parties. The rules and conventions that must be followed.

What are the important parts of a computer network?

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

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.

Computer network includes three important parts: communication subnet, resource subnet and communication protocol.

1. Resource subnet

Resource subnet: From the function of each component of the computer network, each component mainly completes two functions, namely Network communication and resource sharing. The collection of equipment and software that implements network communication functions in a computer network is called the communication subnet of the network, and the collection of equipment and software that implements resource sharing functions in the network is called a resource subnet.

2. Communication subnet

Communication subnet: refers to the collection of equipment and software that implement network communication functions in the network, communication equipment, network communication protocols, Communication control software, etc. belong to the communication subnet, which is the inner layer of the network and is responsible for the transmission of information. It mainly provides users with data transmission, transfer, processing, transformation, etc.

3. Communication Agreement

Communication agreement refers to the rules and agreements that both entities must follow to complete communications or services. The protocol defines the format used by the data unit, the information and meaning that the information unit should contain, the connection method, and the timing of information sending and receiving, thereby ensuring that data in the network is smoothly transmitted to a certain place.

(Computer operating system tutorial: windows)

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