COMPUTER FUNDAMENTALS

COMPUTER HARDWARE

INPUT DEVICES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the used of sensor?
A
Used to process bank cheques
B
To control the pointer on the screen to selecting windows and so on.
C
Inputting data into applications
D
A device that converts a real world property into data that a computer can process
Explanation: 

Detailed explanation-1: -Basically, a sensor (or Transducer) is a device that converts a real-world property (e.g. temperature) into data that a computer can process. They’re used extensively in monitoring / measuring / data logging systems, and also in computer control systems.

Detailed explanation-2: -The most common proximity sensors are inductive, capacitive and optical with all being transducers that include control circuitry.

Detailed explanation-3: -Computers don’t understand analogue data and therefore it needs to be converted to digital (e.g. 1’s and 0’s). The computer can then read the data.

There is 1 question to complete.