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A user presses a key which transfers information to a computer. In computing, an input device is a piece of equipment used to provide data and control signals to an information processing system, such as a computer or information appliance. Examples of input devices include keyboards, computer mice, scanners, cameras, joysticks, and microphones.
The term can also be used as part of an action; to "perform I/O" is to perform an input or output operation. I/O devices are the pieces of hardware used by a human (or other system) to communicate with a computer. For instance, a keyboard or computer mouse is an input device for a computer, while monitors and printers are output devices.
Input and output devices are used to receive data from the external world or write data respectively. Common examples include keyboards and mice (input) and displays and printers (output). Network interface controllers are used to access the Internet. [63]
In computing, channel I/O is a high-performance input/output (I/O) architecture that is implemented in various forms on a number of computer architectures, especially on mainframe computers. In the past, channels were generally [ a ] implemented with custom devices, variously named channel , I/O processor , I/O controller , I/O synchronizer ...
Input/output integrated circuits (28 P) L. Loudspeakers (5 C, 86 P, 6 F) P. ... Sound chips (1 C, 32 P) T. Touchscreens (5 C, 16 P) Pages in category "Computer output ...
Devices that provide input or output to the computer are called peripherals. [126] On a typical personal computer, peripherals include input devices like the keyboard and mouse, and output devices such as the display and printer. Hard disk drives, floppy disk drives and optical disc drives serve as both input and output devices.
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Computer output devices (14 C, 33 P) Computing input devices (12 C, 89 P) I. I/O scheduling (1 C, 2 P) Input methods (5 C, 41 P) ... Pages in category "Input/output"