Pointing device using a manually rotated ball.

Motor adjusting a camera lens for focus.

LCD backlight using many small LEDs.

Hardware keyboard sending computer or MIDI input signals.

Flat pointing device detecting finger movement.

Filter blocking infrared wavelengths from an imaging sensor.

OLED display technology enhanced with quantum dots.

Individual mechanical switch beneath a keyboard key.

Small pointing stick commonly located between keyboard keys.

Image signal processor handling raw camera data.