Output Devices

Output - Output Devices displays information on the screen (monitor) or the printer and sends information to other computers. They also display messages about what errors may have occurred and brings up message or dialog box asking for more information to be input. The output device also saves information on the disk for future use. Examples of output devices are Monitor, Speakers, Printers, and Projectors.

Monitors - The monitor shows information on the screen when typed. This is called outputting information. When the computer needs more information it will display a message on the screen, usually through a dialog box. Monitors come in many types and sizes. The resolution of the monitor determines the sharpness of the screen. The resolution can be adjusted to control the screen's display.

Printers - The printer takes the information on the screen and transfers it to paper or a hard copy. There are many different types of printers with various levels of quality. The three basic types of printer are: dot matrix, inkjet, and laser.

Dot matrix printers work like a typewriter transferring ink from a ribbon to paper with a series or 'matrix' of tiny pins. Ink jet printers work like dot matrix printers but fire a stream of ink from a cartridge directly onto the paper. Laser printers use the same technology as a photocopier using heat to transfer toner onto paper.