Is a sensor an input or output device?

Answer 1

It is an input, sensors are always inputs.

Answer 2

Assuming that a sensor (any type, heat, light, sound etc) is connected to something - eg a computer or a switch etc. it is an 'input' device.

The device which created whatever is being 'sensed' is an output device.

For example if you put a thermometer next to a light bulb to see how hot it is then the bulb is 'output' and the thermometer is 'input'.

Answer 3

Both. And for the record ALL input devices MUST interface with another device.( making them output devices) Either to convert the readings to another form. Or to otherwise process it to a more readable format. Which is actually about the same.. again.

Answer 4

It is an input device. This is because it is sensing something, and in doing so gathering information to input to another device.

Answer 5

Input