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Keyboard controller (computing)

In computing, a keyboard controller is a device that interfaces a keyboard to a computer. Its main function is to inform the computer when a key is pressed or released. When data from the keyboard arrives, the controller raises an interrupt (a keyboard interrupt) to allow the CPU to handle the input.

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Overview

KeyboardComputerKeyInterruptCPU
21 related topics

Modern interface

Super I/ONorthbridge
2 related topics

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Modern interface

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Keyboard controller (computing)

Nodes26
Edges25
Triples2
Avg. degree1.92
Density0.076923
Components1

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Important terminology

keyboard controller used intel cpu mode real interface also a20 line computer mouse data allow input via chip software reset

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SubjectPredicateObjectConfidenceSrc
MS-DOSinstance ofThe latter was a problem because the BIOS and services provided by real mode operating systems0.80text
similar operating systems could only be called by programs in real modeinstance ofThe latter was a problem because the BIOS and services provided by real mode operating systems0.80text

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