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1. The Jargon File (version 4.4.7, 29 Dec 2003) |
magic smoke
n.
A substance trapped inside IC packages that enables them to function (also
called blue smoke; this is similar to the archaic phlogiston hypothesis
about combustion). Its existence is demonstrated by what happens when a
chip burns up ? the magic smoke gets let out, so it doesn't work any more.
See smoke test, let the smoke out.
Usenetter Jay Maynard tells the following story: ?Once, while hacking on a
dedicated Z80 system, I was testing code by blowing EPROMs and plugging
them in the system, then seeing what happened. One time, I plugged one in
backwards. I only discovered that after I realized that Intel didn't put
power-on lights under the quartz windows on the tops of their EPROMs ? the
die was glowing white-hot. Amazingly, the EPROM worked fine after I erased
it, filled it full of zeros, then erased it again. For all I know, it's
still in service. Of course, this is because the magic smoke didn't get let
out.? Compare the original phrasing of Murphy's Law.
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2. The Free On-line Dictionary of Computing (30 December 2018) |
magic smoke
A substance trapped inside integrated
circuit packages that enables them to function (also called
"blue smoke"; this is similar to the archaic "phlogiston"
hypothesis about combustion). Its existence is demonstrated
by what happens when a chip burns up - the magic smoke gets
let out, so it doesn't work any more.
See Electing a Pope, smoke test.
Usenetter Jay Maynard tells the following story:
"Once, while hacking on a dedicated Zilog Z80 system, I was
testing code by blowing EPROMs and plugging them in the
system then seeing what happened. One time, I plugged one in
backward. I only discovered that *after* I realised that
Intel didn't put power-on lights under the quartz windows on
the tops of their EPROMs - the die was glowing white-hot.
Amazingly, the EPROM worked fine after I erased it, filled it
full of zeros, then erased it again. For all I know, it's
still in service. Of course, this is because the magic smoke
didn't get let out."
Compare the original phrasing of Murphy's Law.
[Jargon File]
(1995-01-25)
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Common Misspellings > |
magic smoke amagic smoke amgic smoke mamgic smoke agic smoke mmagic smoke mgaic smoke magaic smoke mgic smoke maagic smoke maigc smoke magigc smoke maic smoke maggic smoke magci smoke magici smoke magc smoke magiic smoke magi csmoke magic csmoke magi smoke magicc smoke magics moke magic s moke magicsmoke magic smoke magic msoke magic smsoke magic moke magic ssmoke magic somke magic smomke magic soke magic smmoke magic smkoe magic smokoe magic smke magic smooke magic smoek magic smokek magic smoe magic smokke magic smoeke magic smok magic smokee jagic smoke mjagic smoke jmagic smoke kagic smoke mkagic smoke kmagic smoke lagic smoke mlagic smoke lmagic smoke nagic smoke mnagic smoke nmagic smoke agic smoke m agic smoke magic smoke mqgic smoke maqgic smoke mqagic smoke mwgic smoke mawgic smoke mwagic smoke msgic smoke masgic smoke msagic smoke mxgic smoke maxgic smoke mxagic smoke mzgic smoke mazgic smoke mzagic smoke m gic smoke ma gic smoke m agic smoke megic smoke migic smoke mogic smoke mugic smoke maric smoke magric smoke margic smoke matic smoke magtic smoke matgic smoke mayic smoke magyic smoke maygic smoke mafic smoke magfic smoke mafgic smoke mahic smoke maghic smoke mahgic smoke mavic smoke magvic smoke mavgic smoke mabic smoke magbic smoke mabgic smoke manic smoke magnic smoke mangic smoke ma ic smoke mag ic smoke ma gic smoke mag8c smoke magi8c smoke mag8ic smoke mag*c smoke magi*c smoke mag*ic smoke mag9c smoke magi9c smoke mag9ic smoke maguc smoke magiuc smoke maguic smoke magoc smoke magioc smoke magoic smoke magjc smoke magijc smoke magjic smoke magkc smoke magikc smoke magkic smoke maglc smoke magilc smoke maglic smoke magac smoke magec smoke magis smoke magics smoke magisc smoke magid smoke magicd smoke magidc smoke magif smoke magicf smoke magifc smoke magix smoke magicx smoke magixc smoke magiv smoke magicv smoke magivc smoke magi smoke magic smoke magi c smoke magic qmoke magic sqmoke magic qsmoke magic wmoke magic swmoke magic wsmoke magic emoke magic semoke magic esmoke magic amoke magic samoke magic asmoke magic dmoke magic sdmoke magic dsmoke magic zmoke magic szmoke magic zsmoke magic xmoke magic sxmoke magic xsmoke magic cmoke magic scmoke magic csmoke magic moke magic s moke magic smoke magic sjoke magic smjoke magic sjmoke magic skoke magic smkoke magic skmoke magic sloke magic smloke magic slmoke magic snoke magic smnoke magic snmoke magic s oke magic sm oke magic s moke magic sm9ke magic smo9ke magic sm9oke magic sm(ke magic smo(ke magic sm(oke magic sm0ke magic smo0ke magic sm0oke magic smike magic smoike magic smioke magic smpke magic smopke magic smpoke magic smkke magic smokke magic smkoke magic smlke magic smolke magic smloke magic smake magic smeke magic smuke magic smoue magic smokue magic smouke magic smoie magic smokie magic smoike magic smooe magic smokoe magic smooke magic smoje magic smokje magic smojke magic smole magic smokle magic smolke magic smome magic smokme magic smomke magic smo,e magic smok,e magic smo,ke magic smo.e magic smok.e magic smo.ke magic smok3 magic smoke3 magic smok3e magic smok# magic smoke# magic smok#e magic smok4 magic smoke4 magic smok4e magic smokw magic smokew magic smokwe magic smokr magic smoker magic smokre magic smoks magic smokes magic smokse magic smokd magic smoked magic smokde magic smokf magic smokef magic smokfe magic smoka magic smoki magic smoko magic smoku 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. What does mispell meen? It Meens...
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