FUNDAMENTALS OF COMPUTER

OPERATING SYSTEMS FOR COMPUTERS

COMPUTER OPERATING SYSTEMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What type of device is used to detect physical changes in things such as light, temperature or object proximity.
A
Sensors
B
Magnets
C
Mice
D
Cameras
Explanation: 

Detailed explanation-1: -A sensor is a device that detects and responds to some type of input from the physical environment. The input can be light, heat, motion, moisture, pressure or any number of other environmental phenomena.

Detailed explanation-2: -A proximity sensor is a device that can detect or sense the approach or presence of nearby objects and for this it does not need physical contact. There are different kinds of proximity sensors. Some of them are listed [8]: Inductive: This type of sensor is used to detect nearby metallic objects.

Detailed explanation-3: -For example, during a telephone call, proximity sensors play a role in detecting (and skipping) accidental touchscreen taps when mobiles are held to the ear. Proximity sensors can be used to recognise air gestures and hover-manipulations.

Detailed explanation-4: -A Displacement Sensor measures and detects changes (displacement) in a physical quantity. The Sensor can measure the height, width, and thickness of an object by determining the amount of displacement of that object.

Detailed explanation-5: -The two most commonly used proximity sensors are the inductive proximity sensor and the capacitive proximity sensor. An inductive proximity sensor can only detect metal targets.

There is 1 question to complete.