Biometrics were first used to track local nationals overseas.
At important places.
Biometrics are helpful tools for security and identity verification. They are especially useful to establish the identity where a person might be stranger to the other, for example huge databases like banks. Biometrics identify on the basis of features unique to an individual, like signature, finger print, iris etc. These are difficult to forge. Biometrics used in home doors do not require carrying a key, or the fear of the key getting stolen. Biometrics are also used to identify criminals and determine their identity.
Behavioral and physiological
Behavioral and physiological
Applications of biometrics are broadly classfied into three categories: 1. Forensic Applications; 2. Government Applications and 3. Commercial Applicatuions
Yes you can get a car alarm with biometrics through a company called United Linkers Biometric & Robotic Solutions
Check out Biometrics and Anthropometrics
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Biometrics
Fingerprint readers, facial recognition, speech recognition... anything really that can be used to uniquely identify a person, in the way of the physcial structure can be used for biometrics.