What must be installed on a computer connected to the Internet?
- 青灯夜游Original
- 2020-12-29 16:21:4515944browse
The computer connected to the Internet must be equipped with: modem or network card. A modem or network card is a hardware device that a computer needs to install to access the Internet; a network card is a piece of computer hardware designed to allow computers to communicate on a computer network; a modem is a type of modulation and demodulation required for communication Functional electronic devices.
Usually, if a computer wants to access the Internet, the equipment that should be installed is: modem or network card.
A modem or network card is a hardware device that needs to be installed on a computer to access the Internet.
Modem, the abbreviation of modulator and demodulator, is a kind of computer hardware that can translate the computer's digital signals into analog signals that can be transmitted along ordinary telephone lines, and these analog signals can be transmitted by the lines. Another modem on the other end receives it and translates it into a language the computer can understand. This simple process completes communication between two computers.
A network card is a piece of computer hardware designed to allow computers to communicate on a computer network. Since it has a MAC address, it belongs to Layer 2 of the OSI model. It allows users to connect to each other via cable or wirelessly. Each network card has a unique 48-bit serial number called a MAC address, which is written in a ROM on the card. Every computer on the network must have a unique MAC address. No two network cards produced have the same address. This is because the Institute of Electrical and Electronics Engineers (IEEE) is responsible for assigning unique MAC addresses to network interface controller (network card) vendors.
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