When talking about protection and computers, biometrics may be the recognition of the person from the dimension of the natural functions. For Example, a person building by their finger-print or speech or identifying themselves to some computer is recognized as biometrics identification.

This kind of program is a lot harder to pretend because it is exclusive for the person when comparing to a code.

Biometric identifiers are unique to individuals, they are more reliable in verifying identity than token and knowledge-based methods; however, the collection of biometric identifiers raises privacy concerns about the ultimate use of this information.

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The hard disk was invented on September 13, 1956 by IBM team led by Rey Johnson (considered as “father” of the disk drive). Earlier hard disk drives were large and cumbersome devices.