DED

Dark-Emitting Diode (that is, a burned-out LED). Compare SED, LER, write-only memory. In the early 1970s both Signetics and Texas instruments released DED spec sheets as AFJs (suggested uses included "as a power-off indicator").

[Jargon File]

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Nearby terms:

DEC Wars « DECwindows « DECwrite « DED » dedicated line » deductive database » deductive tableau

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