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flash lights impressively

flash lights impressively in Technology
programming, command, humour
(FLI) /FLY/ A joke assembly language instruction first documented in the late 1970s in "The Hackers Dictionary".
The FLI instruction was frequently referred to by engineers when minicomputers such as the DEC PDP-8, PDP-11 and some early microcomputers such as the IMSAI and Altair had dozens of front panel lights.
"When the computer is about to do some long I/O operation, stick in a FLI so the accountants won't think the machine has hung again."
(2004-08-23)
The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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