Basic knowledge of computer network

Computer network is an important part of modern information technology, which connects all kinds of computers and equipment to realize information transmission and sharing. This paper will introduce the basic knowledge of computer network, including IP address, network access mode, storage devices, transmission media and so on.

IP address; network address

IP address is a unique address assigned to each host by the Internet, which consists of a series of pure numbers. It is an important concept in computer network.

Network access mode

Users can access the Internet through dial-up, local area network or a combination of dial-up and local area network. These methods are common access methods in computer networks.

Storage unit

Computer storage devices include random access memory, read-only memory and hard disk. Among them, RAM will lose data immediately after power failure, while ROM data is permanent. The data on the hard disk remains on the hard disk after power failure.

Transmission medium

Optical fiber, twisted pair and coaxial cable are commonly used transmission media in computer networks. They can realize high-speed and stable data transmission.

Address bar of IE window

The address bar of IE window is located at the top of the window, which is used to enter the website address or search keywords. This is a common interface element in computer networks.