Devices

Tracker ball - A trackball is a pointing device consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes—like an upside-down mouse with an exposed protruding ball.

Magnetic Stripe Readers - A magnetic stripe card is a type of card capable of storing data by modifying the magnetism of tiny iron-based magnetic particles on a band of magnetic material on the card

Chip Readers and PIN pads - Chip and PIN is a smartcard payment system in the United Kingdom, implementing the EMV standard for secure payments. There is also a similar initiative in Ireland called Chip and PIN Ireland.