Input devices include keyboard, mouse, camera, scanner, light pen, handwriting input pad, joystick, voice input device, etc. The output equipment includes display, printer, audio, plotter, image output system, voice output system, magnetic recording equipment, etc. Introduction of some input and output devices:
1, CAMERA (CAMERA or WEBCAM), also known as computer camera, computer eye, electronic eye, etc., is a video input device, is widely used in video conferencing, telemedicine and real-time monitoring and other aspects. Ordinary people can also talk and communicate with each other through the Internet with video and sound.
2, the mouse, a computer input device, is also a computer display system vertical and horizontal coordinate positioning indicator, because the shape of the mouse named. Its standard name should be \"Mouse\
3. Keyboard is a command and data input device used to operate equipment, and also refers to a set of function keys arranged by the system to operate a machine or equipment. The keyboard is also a part of the keyboard instrument, and can also refer to the instrument that uses the keyboard, such as the piano, digital piano or electronic organ, and the keyboard helps to practice typing.
4, Printer (Printer) is the output device that prints the processing results of the computer on paper. People often refer to the output of the monitor as a soft copy and the output of the printer as a hard copy. A device that converts computer output data into printed fonts
5, Display (Display), also known as monitor, is the main tool to achieve human-machine dialogue. It can display both the commands or data entered by the keyboard and the results of data processing by the computer. There are two main types of displays commonly used. One is the CRT monitor; The other is liquid crystal display.
6, automatic plotter is directly controlled by electronic computer or digital signal, to automatically output a variety of graphics, images and characters of the drawing equipment. It can work online or offline. It is a kind of peripheral equipment widely used in computer aided drawing and computer aided design.
input unit
A device that inputs data and information to a computer. It is the bridge between the computer and the user or other devices. The input device is one of the main devices for information exchange between the user and the computer system. Keyboard, mouse, camera, scanner, light pen, handwriting pad, joystick, voice input device, etc. are all input devices.
output device
It is the terminal equipment of the computer hardware system, which is used to receive the output display, printing, sound, and control peripheral equipment operation of the computer data.
It is also the performance of various calculation results data or information in the form of numbers, characters, images, sounds, etc. Common output devices are monitors, printers, plotters, image output systems, voice output systems, magnetic recording equipment and so on.