Give me a hand
A device common in arcade machines.
Joystick
Needed to move the cursor on a PC.
Mouse
This isn't watching you, but rather what you buy at the supermarket.
Barcode scanner
Steering wheel.
A laptop generally has this on it.
Touchpad
Without this, it would be very hard to chat with your friends.
Microphone
A good quality camera used on computers.
Digital camera
This can tell the difference between you and your friend by your fingerprint alone.
Biometric devices (fingerprint scanner)
An artist would be lost without this.
Graphics tablet
Needed to access the terminal. (or google for that matter)
Keyboard
These are generally of a bad quality on a laptop.
Webcam
This will follow what you say to the letter. (generally unsuccessfully)
Voice-recognition systems
Without this, graphic design would be very messy.
Pen tool.
A device that is in every tablet and phone.
Touch screen
This finds your eyes captivating.
Eye-tracking devices
This watches bank checks to "check" that they are real.
MICR reader