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personal identification number

noun, Computers.
1.
PIN.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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personal identification number in Technology

security
(PIN, "PIN number") A password, typically four digits entered through a telephone keypad or automatic teller machine.
(1996-11-03)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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