COMPUTER FUNDAMENTALS

COMPUTER HARDWARE

INPUT DEVICES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Input devices used to measure physical traits, such as sound, heat, or light.
A
Trackball
B
Voice recognition
C
Webcam
D
Sensors
Explanation: 

Detailed explanation-1: -A sensor measures a specific property data and sends a signal to the computer. Usually this is an analogue signal so it needs to be converted into digital data for the computer to process. This is done using by an Analogue-to-Digital Converter (ADC).

Detailed explanation-2: -Input type transducers or sensors, produce a voltage or signal output response which is proportional to the change in the quantity that they are measuring (the stimulus). The type or amount of the output signal depends upon the type of sensor being used.

There is 1 question to complete.