Indicator light
From Computer History Wiki
Revision as of 07:58, 11 August 2023 by Larsbrinkhoff (talk | contribs) (Stubbish; not much more to say?)
An indicator light is a visual display that reflects some state inside a computer, often arranged in groups on panels or on an operator console. Usually, incandescent light bulbs or light emitting diodes were used. The lights are helpful for diagnosing problems, or when using switches to manually toggle in a program.