Shulou(Shulou.com)06/02 Report--

Editor to share with you what hardware must be installed on computers connected to internet. I hope you will get something after reading this article. Let's discuss it together.

The hardware that must be installed on computers connected to internet is a modem or network card. The network card is a piece of computer hardware designed to allow computers to communicate on the computer network. its main functions are data encapsulation and unencapsulation, link management and data coding and decoding.

Detailed introduction:

A network card is a piece of computer hardware designed to allow computers to communicate over a computer network. Because it has an MAC address, it belongs to layer 2 of the OSI model. It allows users to connect to each other via cable or wireless. Each network card has a unique 48-bit serial number called the MAC address, which is written in a ROM on the card.

Every computer on the network must have a unique MAC address. No two produced network cards have the same address. This is because the Institute of Electrical and Electronic Engineers (IEEE) is responsible for assigning unique MAC addresses to network interface controller (Nic) vendors.

Main functions:

1. Encapsulation and unencapsulation of data

When sending, the data transmitted from the upper layer is added to the head and tail to become the frame of Ethernet. When receiving, the Ethernet frame is stripped of the head and tail, and then sent to the upper layer.

2. Link management

It is mainly realized through CSMA/CD (Carrier Sense Multiple Access with Collision Detection, Carrier sense multiple access with collision Detection) protocol.

3. Data coding and decoding

Manchester coding and decoding. Manchester code, also known as digital bidirectional code, phase separation code or phase coding (PE), is one of the commonly used binary code line coding methods, which is used by the physical layer to encode a synchronous bit stream clock and data. In communications, a code used to represent the combination of data in a bit stream to be transmitted and a timing signal. It is commonly used in Ethernet communication, train bus control, industrial bus and other fields.

After reading this article, I believe you have a certain understanding of "what hardware must be installed on computers connected to internet". If you want to know more about it, you are welcome to follow the industry information channel. Thank you for reading!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.