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Pit

   Also found in: Dictionary/thesaurus, Medical, Legal, Financial, Acronyms, Idioms, Wikipedia, Hutchinson 0.06 sec.

An indentation in an optical medium such as a CD-ROM or DVD. The laser beam is either absorbed in the pit or reflects off the non-indented areas, which are called "lands." Using various algorithms, the reflections are converted into 0 and 1 bits.

Pits and Lands
This microscopic view of a CD-ROM and DVD disc compares the track density and pits and lands, which account for 7.5 times as much data on the DVD. (Image courtesy of C-Cube Microsystems.)

Pit,
the Board of Trade’s cellar, where all bidding occurs. [Am. Lit.: The Pit. Magill I, 756–758]
See : Gambling
PIT - Language for IBM 650. (See IT).


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? Mentioned in ? References in classic literature
 
Often they ceased their labors to squat, resting and gossiping, with much laughter, at the edge of the pit they were digging.
Jungle Tales of Tarzan by Burroughs, Edgar Rice View in context
And so he did not see or scent what a more wary Numa might readily have discovered until, with the cracking of twigs and a tumbling of earth, he was precipitated into a cunningly devised pit that the wily Wamabos had excavated for just this purpose in the center of the game trail.
Tarzan the Untamed by Burroughs, Edgar Rice View in context
The gloom which surrounded that horrible charnel pit, which seemed to go down to the very bowels of the earth, conveyed from far down the sights and sounds of the nethermost hell.
The Lair of the White Worm by Stoker, Bram View in context
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