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An output device is any piece of computer hardware that converts information or data into a human-perceptible form or, historically, into a physical machine-readable form for use with other non-computerized equipment. It can be text, graphics, tactile, audio, or video. Examples include monitors, printers and sound cards.
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Devices for communication between computers, such as modems and network cards, typically perform both input and output operations. Any interaction with the system by an interactor is an input and the reaction the system responds is called the output. The designation of a device as either input or output depends on perspective.
A display device is an output device for presentation of information in visual [1] or tactile form (the latter used for example in tactile electronic displays for blind people). [2] When the input information that is supplied has an electrical signal the display is called an electronic display.
HP LaserJet 5 printer The Game Boy Pocket Printer, a thermal printer released as a peripheral for the Nintendo Game Boy This is an example of a wide-carriage dot matrix printer, designed for 14-inch (360 mm) wide paper, shown with 8.5-by-14-inch (220 mm × 360 mm) legal paper.
An electronic or electromechanical hardware device that is used for entering data into, and displaying data from, a computer or a computing system. touchpad. Also trackpad. A pointing device consisting of specialized surface that can translate the motion and position of a user's fingers or a stylus to a relative position on a screen. [7] TV ...
A device that adjusts the (effective) voltage to a load. voltage converter Any device that changes electric power at one voltage to power at a second; a transformer is a common example of an AC voltage converter. voltage division A circuit that produces an output voltage that is some, perhaps adjustable, fraction of the input voltage. voltage ...
For example, Schmitt-trigger inputs, high-current output drivers, optical isolators, or combinations of these, may be used to buffer and condition the GPIO signals and to protect board circuitry. Also, higher-level functions are sometimes implemented, such as input debounce , input signal edge detection, and pulse-width modulation (PWM) output.