visible bell

visible bell

(communications)
(Or "visual bell") A program option (whether in a terminal program, termcap setting, or as a stand-alone program) which outputs the bell character code as a visual signal (e.g., a flashing status bar or menu bar).

Generally intended for deaf or hearing-disabled users who couldn't hear the normal auditory beep; also widely used by users who simply don't want their machines feeping at them or disturbing other users.

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References in periodicals archive ?
Homesafe was called in by police and the property was fitted with security devices, including an alarm system with a visible bell box, which emits a 114 decibel sound and a flashing strobe light.
There probably won't be much of a visible bell at this point.