... port.1 Businesses use fingerprint scanners to authenticate users before they can access a personal computer. Grade schools use fingerprint scanners as an alternative to lunch money. Students' account balances adjust for each lunch purchased. Law enforcement, surveillance systems, airports, day-care centers, financial institutions, the military, and other organizations that deal with highly sensitive data use other types of biometrics. A face recognition system captures a live face image and compares it with a stored image. A hand geometry system measures the shape and size of a person's hand (Computers and Biometrics). A voice verification system compares a person's live speech with his or her stored voice pattern. A signature verification system recognizes the shape of a handwritten signature, as well as measures the pressure exerted and the motion used to write the signature. Finally, an iris recognition system reads patterns in the iris of the eye. Works Cited Carter, Donnell W., and ...

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