External devices with wireless functions include wireless keyboards, wireless mice, wireless headsets, mobile phones, and radios; among them, wireless keyboards have no direct physical connection between the keyboard body and the computer, and wireless mice refer to wireless cables. A mouse that is directly connected to the host computer, a wireless headset in which the middle wire is replaced by radio waves, and so on.
#The operating environment of this article: Windows 7 system, DELL G3 computer.
Wireless keyboard, wireless mouse, wireless headset, mobile phone, radio.
1. A wireless keyboard is a Bluetooth device that has no direct physical connection between the keyboard and the computer and transmits input information to a special receiver through infrared rays or radio waves.
2. A wireless mouse refers to a mouse that is directly connected to the host computer without a cable. It uses wireless technology to communicate with the computer, thereby eliminating the need for wires. Wireless communication methods are usually used, including Bluetooth, Wi-Fi (IEEE 802.11), Infrared (IrDA), ZigBee (IEEE 802.15.4) and other wireless technology standards.
3. Wireless earphones have the middle wire replaced by radio waves. They are connected from the audio outlet of the computer to the transmitter, and then the transmitter sends the radio waves to the receiver's earphones. The receiver is equivalent to a radio.
4. Mobile phone, the full name is mobile phone or wireless phone, usually called mobile phone. It was originally just a communication tool. In the early days, it was also commonly known as mobile phone. It is a portable phone terminal that can be used in a wide range of , first developed from the field mobile phone manufactured by Bell Labs in the United States in 1940.
5. Radio is a machine made of mechanical devices, electronic devices, magnets, etc. It uses electrical energy to convert radio wave signals and can listen to the audio signals emitted by radio stations. Also known as radio, broadcast, etc.
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