From Wiktionary, the free dictionary
From key + click.
keyclick (plural keyclicks)
- (computing) The sound produced by a keypress.
1984, Byte:The keyclick option is helpful to experienced typists who don't need to look at the keyboard.
1993, Valerie Quercia, Tim O'Reilly, X Window System User's Guide:The c
option sets the volume of the keyboard's keyclick.