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請輸入英文單字，中文詞皆可：

foobar    
Another common {metasyntactic variable}; see {foo}.
Hackers do *not* generally use this to mean {FUBAR} in either
the slang or jargon sense.

According to a german correspondent, the term was coined
during WW2 by allied troops who could not pronounce the german
word "furchtbar" (horrible, terrible, awful).

[{Jargon File}]

(2003-07-03)

FTP Operation Over Big Address Records (RFC 1639, FTP)

foobar: n. [very common] Another widely used
metasyntactic variable; see foo for etymology.
Probably originally propagated through DECsystem manuals by Digital
Equipment Corporation (DEC) in 1960s and early
1970s; confirmed sightings there go back to 1972. Hackers do
not generally use this to mean
FUBAR in either the slang or jargon sense. See also
Fred Foobar. In RFC1639, “FOOBAR” was
made an abbreviation for “FTP Operation Over Big Address
Records”, but this was an obvious backronym.
It has been plausibly suggested that “foobar” spread among
early computer engineers partly because of FUBAR and partly because
“foo bar” parses in electronics techspeak as an inverted foo
signal; if a digital signal is active low (so a negative or zero-voltage
condition represents a "1") then a horizontal bar is commonly placed over
the signal label.

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