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What is the network adapter in the computer network?

2025-01-27 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Internet Technology >

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This article mainly shows you "what is the network adapter in the computer network". The content is easy to understand and clear. I hope it can help you solve your doubts. Let me lead you to study and learn the article "what is the network adapter in the computer network?"

Network adapter, also known as network interface controller, network card, is a piece of computer hardware designed to allow computers to communicate on the computer network. Because it has an MAC address, it belongs to layer 1 of the OSI model, which allows users to connect to each other via cable or wireless.

The operating environment of this tutorial: windows10 system, Dell G3 computer.

Network adapter (Network Adapter) is also known as network interface controller, network card (network interface card).

The network card is the interface between the computer and the transmission medium. The network card is mainly used to convert computer data into signals that can be transmitted through the transmission medium.

Types of network cards

If a network device wants to access the Internet, it needs to be connected through a network card. Due to the different ways of surfing the Internet, the types of network cards used will be different. There are the following types of network cards:

1) wired network card

A wired network card is a network card that connects to the network through a "line". The "line" here refers to the network cable. The common form of a wired network card is shown in the figure.

2) Wireless network card

In contrast to the wired network card, the wireless network card does not need to be connected through the network cable, but through the wireless signal. The wireless network card usually refers to the wireless network card of the Wi-Fi network. The common form of wireless network card is shown in the figure.

3) Bluetooth Adapter

Bluetooth adapter is also a kind of wireless network card. The difference between Bluetooth adapter and wireless network card is the way of data communication. The common styles of Bluetooth adapters are shown in the figure.

Classified by installation mode

The network card is usually the subordinate device of the network device. According to its installation mode, the network card can be divided into internal network card and external network card.

1) built-in network card

As the network card has become a necessary device to connect to the network, so many network devices have built-in network cards. Therefore, the built-in network card is also called integrated network card. For example, today's motherboards are integrated with wired network cards, as shown in the figure. The interface indicated by the arrow is the wired network card interface provided by the built-in network card.

2) external network card

In addition to the built-in network card, many network devices allow users to install additional network cards. This kind of network card is called external network card, sometimes called independent network card. Because it can be inserted in various expansion slots of the motherboard, it can be disassembled at will and has a certain degree of flexibility. The wired and wireless network cards mentioned above belong to external network cards.

The above is all the contents of the article "what is the Network Adapter in the computer Network?" Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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