An output device is any peripheral device that is connected to a computer in order to give visual or audible feedback to the user. Output devices vary dramatically in size and function, although all output devices must be connected to the computer via USB ports, VGA cables, IDE cables, etc. Some types of output devices are included with the computer upon purchase while others must be bought separately and connected to the computer at a later time. An output device is generally much larger than an input device and is considered one of the essential modules of any computer.

Monitor

Monitors are the most popular and widely used output device in the world. At least one monitor is included with every home computer purchase and it is usually already physically attached to the computer itself. A monitor is responsible for displaying visual feedback by showing printed texts, toolbars, and a wide variety of user interfaces on a well-lit screen. A monitor is one of the most essential parts of a computer because without it, users would not be able to interact with any files, programs, or other applications stored on the computer.

Speakers

Another computer output device is a speaker. Speakers allow the user to listen to audible feedback from the computer and may or may not be included with the computer at the time of purchase. Generally, all computers have a built-in speaker system, although external speakers may be added due to low quality or the inability to reposition the speakers in order to obtain optimal performance. Speakers are not essential to a computer’s daily use, but may be necessary in specific situations.

Printer

A printer is another output device that is not essential to a computer’s daily use. It produces physical copies of text and/or pictures so that a user can fill out forms, save text for later use, or post printed materials in a work area. Printers range in size and design, with most modern printers using digital laser technology. Printers are rarely included with computers at the time of purchase and usually cost less than the ink that they require. As a result, most people choose to buy entirely new printers rather than refill ink cartridges.