Biometrics is the technical term for body measurements and calculations. It refers to metrics related to human characteristics. Biometrics authentication (or realistic authentication)[note 1] is used in computer science as a form of identification and access control.[1][2] It is also used to identify individuals in groups that are under surveillance.
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Physiological:
1.Fingerprint
2.Hand geometry
3.Iris and retina scan
4.Face recognition
5.DNA
Behavication:
1.Voice recognition
2.Sinnature verfication
3.Keystrike verfication
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