Choose biometric devices from the list.
Answer: 
Explanation:
Following are the biometric devices:
Hand scanner
Retinal scanner
Voice analyzer
In order to gain access to resources, a user must pass a physical screening process.
A hand scanner is used to identify fingerprints, scars, and marks on users’ hands. Retinal scanners
compare eye’s retinal pattern to a stored
retinal pattern to verify the identity of a person or user. In the same way, voice analyzers use the
voice of a user for authentication.
What is biometrics? Hide
Biometrics is a method of authentication that uses physical characteristics, such as fingerprints,
scars, retinal patterns, and
other forms of biophysical qualities to identify a user. Nowadays, the usage of biometric devices
such as hand scanners
and retinal scanners is becoming more common in the business environment.
Touch pad, Touch screen, and Barcode reader are not biometric devices.
What is a touch pad? Hide
A touch pad is a device used to control pointer or cursor movement on a computer’s monitor screen.
It is used in place of amouse. Originally introduced with laptops, touch pads are now also available with desktop
computers. A touch pad senses
a user’s finger movements and moves the pointer accordingly.
What is touch screen? Hide
Touch screen is a computer display screen that is sensitive to human touch. It allows a user to
interact with a computer by
touching the icons or graphical buttons on the monitor screen. It is a system that is designed to help
users who have
difficulty in using mouse or keyboard and is used with information kiosks, computer-based training
devices etc. A touch
screen panel is attached externally to the monitor that is connected to a serial or Universal Serial Bus
(USB) port on a
computer. Nowadays, monitors are also available with built-in touch screen technology. There are
three types of touch
screen technologies:
1.Resistive
2.Capacitive
3.Surface Wave