Yes, anything that serves the same function as one of your five (or six) senses is an input device.
- Any type of sensor is an input device.
- Anything that reads is an input device.
- Anything that scans is an input device.
- Anything that sees (still camera or video camera) is an input device.
- Anything that hears (microphone or recording device) is an input device.
- Anything that "feels" (temperature sensor, humidity sensor, rain gage, or anything with buttons, like a keyboard and a mouse) is an input device.
- Anything that "tastes" or "smells" (smoke detector, CO detector, raydon detector, chromatograph, etc.) is an input device.
In contrast, anything that makes you use your senses is an output device, including (but not limited to)...
- speakers
- monitors
- printers
- devices controled by the computer
Some devices serve as both input devices and output devices, ibnlt...
- hard drive, thumb drive or other data storage
- telephone
- copier
- modem
- network router