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1. The Jargon File (version 4.4.7, 29 Dec 2003) |
Big Red Switch
n.
[IBM] The power switch on a computer, esp. the ?Emergency Pull? switch on
an IBM mainframe or the power switch on an IBM PC where it really is
large and red. ?This !@%$% bitty box is hung again; time to hit the Big
Red Switch.? Sources at IBM report that, in tune with the company's passion
for TLAs, this is often abbreviated as BRS (this has also become
established on FidoNet and in the PC clone world). It is alleged that the
emergency pull switch on an IBM 360/91 actually fired a non-conducting bolt
into the main power feed; the BRSes on more recent mainframes physically
drop a block into place so that they can't be pushed back in. People get
fired for pulling them, especially inappropriately (see also molly-guard
). Compare power cycle, three-finger salute; see also scram switch.
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2. The Free On-line Dictionary of Computing (30 December 2018) |
Big Red Switch
BRS
(BRS) IBM jargon for the power switch on a computer,
especially the "Emergency Pull" switch on an IBM mainframe or
the power switch on an IBM PC where it really is large and red.
"This !@%$% bitty box is hung again; time to hit the Big Red
Switch."
It is alleged that the emergency pull switch on an IBM 360/91
actually fired a non-conducting bolt into the main power feed; the
BRSes on more recent mainframes physically drop a block into place
so that they can't be pushed back in. People get fired for
pulling them, especially inappropriately (see also molly-guard).
Compare power cycle, three-finger salute, 120 reset; see
also scram switch.
[Jargon File]
(2014-08-10)
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Common Misspellings > |
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Switch Big Refd Switch Big Rex Switch Big Redx Switch Big Rexd Switch Big Rec Switch Big Redc Switch Big Recd Switch Big Rev Switch Big Redv Switch Big Revd Switch Big Re Switch Big Red Switch Big Re d Switch Big Red qwitch Big Red sqwitch Big Red qswitch Big Red wwitch Big Red swwitch Big Red wswitch Big Red ewitch Big Red sewitch Big Red eswitch Big Red awitch Big Red sawitch Big Red aswitch Big Red dwitch Big Red sdwitch Big Red dswitch Big Red zwitch Big Red szwitch Big Red zswitch Big Red xwitch Big Red sxwitch Big Red xswitch Big Red cwitch Big Red scwitch Big Red cswitch Big Red witch Big Red s witch Big Red switch Big Red S2itch Big Red Sw2itch Big Red S2witch Big Red S@itch Big Red Sw@itch Big Red S@witch Big Red S3itch Big Red Sw3itch Big Red S3witch Big Red Sqitch Big Red Swqitch Big Red Sqwitch Big Red Seitch Big Red Sweitch Big Red Sewitch Big Red Saitch Big Red Swaitch Big Red Sawitch Big Red Ssitch Big Red Swsitch Big Red Sswitch Big Red Sditch Big Red Swditch Big Red Sdwitch Big Red Sw8tch Big Red Swi8tch Big Red Sw8itch Big Red Sw*tch Big Red Swi*tch Big Red Sw*itch Big Red Sw9tch Big Red Swi9tch Big Red Sw9itch Big Red Swutch Big Red Swiutch Big Red Swuitch Big Red Swotch Big Red Swiotch Big Red Swoitch Big Red Swjtch Big Red Swijtch Big Red Swjitch Big Red Swktch Big Red Swiktch Big Red Swkitch Big Red Swltch Big Red Swiltch Big Red Swlitch Big Red Swatch Big Red Swetch Big Red Swi5ch Big Red Swit5ch Big Red Swi5tch Big Red Swi%ch Big Red Swit%ch Big Red Swi%tch Big Red Swi6ch Big Red Swit6ch Big Red Swi6tch Big Red Swirch Big Red Switrch Big Red Swirtch Big Red Swiych Big Red Switych Big Red Swiytch Big Red Swifch Big Red Switfch Big Red Swiftch Big Red Swigch Big Red Switgch Big Red Swigtch Big Red Swihch Big Red Swithch Big Red Swihtch Big Red Switsh Big Red Switcsh Big Red Switsch Big Red Switdh Big Red Switcdh Big Red Switdch Big Red Switfh Big Red Switcfh Big Red Switfch Big Red Switxh Big Red Switcxh Big Red Switxch Big Red Switvh Big Red Switcvh Big Red Switvch Big Red Swit h Big Red Switc h Big Red Swit ch Big Red Switct Big Red Switcht Big Red Switcth Big Red Switcy Big Red Switchy Big Red Switcyh Big Red Switcu Big Red Switchu Big Red Switcuh Big Red Switcg Big Red Switchg Big Red Switcgh Big Red Switcj Big Red Switchj Big Red Switcjh Big Red Switcb Big Red Switchb Big Red Switcbh Big Red Switcn Big Red Switchn Big Red Switcnh Big Red Switcm Big Red Switchm Big Red Switcmh Big Red Switc Big Red Switch Big Red Switc h Definition commonly spelled as: Defanition or Defenition, Synonym as: Synonim, Sinonym or Sinonim, Thesaurus as: Thesorus or Thesauris, Dictionary as: Dictionery or Dictionry and Define is usually not misspelled. 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