Explanation:

A graphics tablet (also known as a pen tablet, drawing tablet or digitizer) is a hardware input device used primarily by digital artists, though many non-artists use them as well. Graphics tablets have a hard plastic, touch-sensitive drawing surface that transfers stylus or mouse movements to a monitor.
In computers, a joystick is a cursor control device used in computer games and assistive technology . The joystick, which got its name from the control stick used by a pilot to control the ailerons and elevators of an airplane, is a hand-held lever that pivots on one end and transmits its coordinates to a computer.
A barcode reader is an optical scanner that can read printed barcodes, decode the data contained in the barcode and send the data to a computer. Like a flatbed scanner, it consists of a light source, a lens and a light sensor translating for optical impulses into electrical signals.
A magnetic stripe reader, also called a magstripe reader, is a hardware device that reads the information encoded in the magnetic stripe located on the back of a plastic badge.