keyscan

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English[edit]

Etymology[edit]

key +‎ scan

Noun[edit]

keyscan (plural keyscans)

  1. (computing) The process of scanning the state of a keyboard to determine which keys are being pressed.
    • 1986, Commodore 128: Programmer's Reference Guide, page 421:
      There are two indirect RAM jumps encountered during a keyscan: […]
    • 1993, Thomas W. Schultz, C and the 8051: Programming for Multitasking, page 182:
      So, a keyscan routine that repeated every 100mSec would probably meet the requirement of fast enough.
    • 2000, Walter A. Triebel, Avtar Singh, The 8088 and 8086 Microprocessors: Programming, Interfacing, Software, Hardware, and Applications, page 639:
      The keyboard of the PC generates a keyscan code whenever one of its keys is depressed
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