= E =
EOU /E-O-U/ n.
The mnemonic of a mythical ASCII control
character (End Of User) that would make an ASR-33 Teletype explode
on receipt. This construction parodies the numerous obscure
delimiter and control characters left in ASCII from the days when
it was associated more with wire-service teletypes than computers
(e.g., FS, GS, RS, US, EM, SUB, ETX, and esp. EOT). It is worth
remembering that ASR-33s were big, noisy mechanical beasts with a
lot of clattering parts; the notion that one might explode was
nowhere near as ridiculous as it might seem to someone sitting in
front of a tube or flatscreen today.
--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.