QWERTY keyboard

Keypad

Mouse

Mechanical mouse

Optical Mouse

Trackpad

Magnetic strip cards

Smart card

Optical Mark Recognition

Optical Character recognition

PDA

Radio Frequency ID

Flat-bed scanners

Barcode scanner

Hand-held scanner

In sheet-feed scanner

Magnetic Ink Character recognition

Sampling

Sample rate

MIDI

Webcam

Digital Camera

Game controllers

Handwriting software

Graphic tablets

Video conferencing

Speech recognition software

Drum scanner