write a short note on biometric devices
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Biometric devices measure biological elements (like human features) in order to perform functions, such as logging health/fitness data and authenticating users. There are many different uses for the technology and a variety of methods for its implementation. Types of biometric data include visual, audio, spatial and behavioral.
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A biometric device is a security identification and authentication device. Such devices use automated methods of verifying or recognising the identity of a living person based on many characteristics.
Some of them are : fingerprints, etc.
They are useful as they help in security purposes.
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