What are some examples of biometric devices?
A fingerprinting scan is a very common biometric device. There are also iris matching scanners for high tech security. @Nottingham YE$
What are biometric devices and what is the difference between biometric scanners and biometric devices?
Broadly, a "biometric device" is any device that measures a biological function or trait. As related to computers, biometric devices are used to control access and/or verify identity. Voice recognition, retinal scanners, palm/fingerprint scanners are all examples of biometric devices. A biometric scanner will take a picture (your fingerprint, your retina) and match it to a previous scan kept on file. Other types of biometric devices, such as voice recognition systems, will record your voice…
Biometric devices measure (metric) features of living things (bio). To be useful in security (such as authentication and identification), biometric devices measure features of living things that are unique for any individual, such as the Fingerprint Readers now available on most laptops. Other biometric devices include Voice Print Analyzers, Facial Recognition Scanners, and eye (retina or iris) scanners.
Biometrics is the system of identifying humans through personal characteristics. Examples of biometric systems include the scanning of the iris/retina, fingerprint scanning, and handwriting scanning. Another example of a biometric system is the scanning of the voice in order to recognise the speaker.
What si the most important disadvantage of using biometric devices to authenticate a person to have access to a system?
Most biometric devices would be input devices although they may also utilize storage devices and output devices in their functioning. A biometric device usually takes in biometric information about a person and compares it to information stored in a database - much like username/password methods of authentication compare the username and password to the stored information for a user. Fingerprint scanners, read the fingerprint, convert it to a data stream and then compare it to…
What is the most important disadvantage of using biometric devices to authenticate a person to have acess to a system?
Methods used to successfully forge biometric input have included using a jelly copy of a finger with the fingerprint embedded on it and using a photograph of an individual in place of their face for a facial scan. The better biometric devices will incorporate methods to prevent these types of methods from succeeding, but both these two methods and others have been demonstrated as still working on some biometric authentication devices still on the market…