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Additional
Lock (security device)
English Wikipedia - The Free Encyclopedia
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Lock (security device)
A
lock
is a
mechanical
or
electronic
fastening device that is released by a physical object (such as a
key
,
keycard
,
fingerprint
,
RFID
card,
security token
etc.), by supplying secret information (such as a keycode or
password
), or by a combination thereof.
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