An output device is a part of the computer that receives the processing from the computer and presents or displays it. Output devices come in several forms, including display monitors, printers and speakers, and they are distinct from input devices, which are the parts of the computer that give the machine instructions.
The display is how you see the output of the computer. The display is the external monitor on a desktop or the attached monitor on a laptop. Although displays used to be made with cathode-ray tubes (CRT), flat-screen panels have replaced that technology. Flat-screen liquid-crystal display (LCD) monitors are lighter and have better display quality than older CRT monitors.
A printer is a device that prints output to a page. Printers come in color or simply black and white. Inkjet and laser printers are the most common home devices. Most businesses have laser printers since the quality is better and the output is faster. Printers can be connected to the computer or networked using a print server.
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Speakers are attached to computers for the output of sound. Sound cards are required in the computer for speakers to function. Speakers range from simple, two-speaker output devices to surround-sound multi-channel units
DVD or CD-ROM
A DVD or CD-ROM is a media device on which the user can write data and information. DVDs have replaced CD-ROMs since they hold more information than legacy discs. DVDs are normally used as storage backups to save documents and applications in case of a hard drive failure. They are also used to create installation discs for software development.
Headsets are a combination of speakers and microphone. A headset is used mostly by gamers, but it is also great tool for communicating with family or friends over the Internet using VOIP software.