What are the computer input devices About computer input devices

1, the mouse is a handheld screen coordinate positioning device, it is adapted to the menu operation of the software and graphics processing environment and the emergence of an input device, especially in today's popular Windows graphics operating system environment to apply the mouse is convenient and fast. There are two kinds of commonly used mice, one is mechanical, the other is photoelectric.

2, the camera is also known as a computer camera, computer eye, electronic eye, etc., is a video input device, is widely used in video conferencing, telemedicine and real-time monitoring.

3, scanner, is the use of optoelectronic technology and digital processing technology, in order to scan the graphic or image information into a digital signal device.

4, light pen, also known as photoelectric pen, with light and photoelectric tube will be a special form of data, such as bar code record sheet read into the computer system, a device, the shape of which is similar to the pen, so commonly known as light pen.

5, voice input and output devices refers to the human voice information directly into or out of the computer's human-computer interface device. People in daily life is mostly through the voice to convey information, so the voice input and output devices is an important development direction of the human-computer interface device.

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