Zhao 1

Suzy Zhao
Mr. Ortiz
Information System 101
October 13, 2005
Biometrics
Biometrics is the technology of authenticating a person’s identity by verifying a personal characteristic. Biometric devices grand users access to programs, systems, or rooms by analyzing some biometric identifier (Schmidt 54-62). A biometric identifier is a physical or behavioral characteristic. Examples include fingerprints, facial features, hand geometry, voice patterns, signatures, and eye patterns.
A biometric device translates a personal characteristic into a digital code that is compared with a digital code stored in the computer. If the digital code in the computer does not match the personal characteristic’s code, the computer denies access to the individual.
The most widely used biometric device today is a finger print scanner. A finger print scanner captures curves and identification of a finger print. With the fingerprint scanners less than 0, experts believe this technology will become the home user’s authentication device for e-commerce transactions. To conduct a credit-card transaction the Web site would require users to hold a finger on the scanner. External fingerprint scanners usually plug into a parallel or USB port. Businesses use a finger print scanners to authenticate uses before they can access a personal computer. Grade schools use fingerprint scanners as an alternative to lunch money. Students’ accounts balances adjust adjust for each lunch purchased.
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According to carter and Juarez, newer keyboards and notebook computers have a fingerprint scanner built into them (42-53).
Zhao 2

Law enforcement, surveillance systems, airports, day care centers, financial institutions, the military and other originations 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 of a size of a person’s hand (Computers and Biometrics). A voice verification system recognizes the shape of a hand written the signature. Finally, an iris recognition system reads patterns in the iris of the eye.

Zhao 3

Works Cited
Carter, Donnell W., and Louis C. Juarez. Securing Confidential data entered into a computer.
Boston: Thomas publishing, 2005.
Computers and Biometrics. Shelly Cashman Series. Course technology. 3 Oct. 2005.

http://www.scsite.com/wd2003/r2/wc.htm.

Schmidt, Karl J. “BIOMETRICS AND AUTHENTICTING COMPUTERS USER.” Computers and the internet
Aug. 2005:54-62.

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