Which of the following uses the synchronized positioning of light-emitting and sensing devices to detect user input?
A) Biometric keyboard scanner
B) Laser virtual keyboard
C) Fingerprint scanner
D) Touch display screen

Question

Quizplus · Accepted Answer

The synchronized positioning of light-emitting and sensing devices is used in laser virtual keyboards to detect user input. Biometric keyboard scanners use biometric technology to identify users, fingerprint scanners use fingerprint recognition, and touch display screens use touch-sensitive surfaces to detect user input.

Which of the Following Uses the Synchronized Positioning of Light-Emitting