What are the common input/output devices in computers?

Common input devices in computers include: keyboard (a command and data input device used to operate computer equipment), mouse, camera, scanner, light pen, handwriting input pad, joystick, and voice input Devices etc. Common output devices include: monitors, image output systems, magnetic recording devices, printers, voice output systems, plotters, etc.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

Input devices

Input devices: Devices that input data and information into the computer. It is a bridge between computers and users or other devices. Input devices are one of the main devices for information exchange between users and computer systems. Keyboards, mice, cameras, scanners, light pens, handwriting input tablets, joysticks, voice input devices, etc. are all input devices.

Input device (InputDevice) is a device for human or external interaction with the computer. It is used to input raw data and programs for processing these numbers into the computer.

Computers can receive a variety of data, which can be numerical data or various non-numeric data, such as graphics, images, sounds, etc., through different types of input devices. Input into the computer for storage, processing and output.

Common input devices are

1. Character input device: keyboard.

The keyboard is a command and data input device used to operate computer equipment. It also refers to a set of function keys (such as typewriters, computer keyboards) that operate a machine or equipment through system arrangements. The keyboard is also a part of the keyboard instrument. It can also refer to an instrument that uses a keyboard, such as a piano, a digital piano or an electronic keyboard. The keyboard is helpful for practicing typing.

2. Image input devices: mobile phones, cameras, digital cameras, scanners, fax machines, etc.

3. Graphic input devices: light pen, mouse, etc.

4. Analog input device: Language analog-to-digital conversion recognition system.

Output device

The output device (Output Device) is the terminal device of the computer hardware system, used to receive the output display and print of computer data. , sound, control peripheral device operations, etc. It also expresses various calculation result data or information in the form of numbers, characters, images, sounds, etc.

Common output devices include: Monitors, image output systems, magnetic recording equipment, printers, voice output systems, plotters, etc.

Output device is a general term for devices that send information from the outside world to the computer and devices that return processing results to the outside world. These returned results may be experienced visually by the user, or as input to other devices controlled by the computer: for a robot, the output of the control computer is basically the robot itself, such as performing various behaviors. .

The function of the output device is to output the information processed by the computer in the memory in a form that can be accepted by humans or other devices.

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