Compact disk-read only memory (CD-ROM) refers to a 4.75-inch, laser encoded, optical memory storage medium. Technologies include CD-ROM XA (extended architecture), CD-RW (rewritable), and CD-WO (write once).
Computer mice and pointing devices are used to control the screen-based movement of a cursor or icon on a visual computer. This category includes mice, trackballs, and touch pads.
Industrial keyboards are peripheral hardware devices that include alphanumeric keys, electromechanical buttons, or sensors that users press to interface with a computer.
Laser printers use a laser beam to produce an image on a drum that is rolled through a reservoir of toner. The beam is picked up by the charged portions of the drum to fuse the image onto paper.