COMPUTER ARCHITECTURE
INPUTOUTPUT DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A device that outputs information from a physical source
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A device that inputs information from a physical source
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A device that turns on actuators
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A device that turns on LEDs
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Detailed explanation-1: -A device that measures a physical quantity and converts it into a signal which can be read by an observer or by an instrument. A sensor is a device, which responds to an input quantity by generating a functionally related output usually in the form of an electrical or optical signal.
Detailed explanation-2: -A sensor is a device that measures physical input from its environment and converts it into data that can be interpreted by either a human or a machine.
Detailed explanation-3: -Sensor Device is a type of input device which do some processing and generates output. The other meaning of sensor device is that it is a type of device which convert signals from one source of energy to the electrical domain. One of the sensor examples is a Light Dependent Resistor (LDR).