Biometrics refers to the automatic identification of a person based on his/her physiological or behavioral characteristics.

A biometric system is a pattern recognition system which recognizes a user by determining the authenticity of a specific characteristic possessed by the user.

The most common traits being used are face and fingerprint but systems can be based on retinal scan, voice and hand geometry.

Biometric devices consist of a scanner, software to convert the gathered information into digital form, and a database to store the biometric data for comparison with records. The software identifies specific points of data as match points.

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