Which ten computer terms are being described below?

a A matrix of filled-in dark squares on a light background; read using a smartphone camera or tablet using an app.

b A device that can read marks written in pen or pencil; the pencil or pen marks must be made in the correct position.

c An input device that takes physical readings from the surroundings and sends the data back to a computer.

d An input device that converts sound into electric signals that can be stored digitally on a computer.

e A device that converts a photograph or document into a computer-readable file.

f A device used to control the operation of other electronic devices using infrared signals.

g A direct data entry device that uses radio waves to read and capture information stored on an electronic tag.

h A device that produces very high-quality hard copy output; uses dry ink cartridges and an electrically charged drum.

i A device that prints by impacting a print head made up of an array of pins against an inked ribbon.

j A pointing device that moves around on a surface in an X-Y direction to control a cursor on a computer screen.