Computer input devices include keyboards, mice, cameras, scanners, light pens, handwriting input boards, joysticks, voice input devices, etc.
1, the mouse (Mouse) is a hand-held screen coordinate positioning device, it is adapted to the menu operation of the software and graphics processing environment and the emergence of a kind of 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 (CAMERA or WEBCAM), also known as the 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 (scanner), is the use of optoelectronic technology and digital processing technology, scanning method of graphics 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, it is 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 their daily lives, most of which are transmitted by voice information, so voice input and output devices is an important development direction of the human-computer interface device.