What is meant by output device?

Output devices of a computer are the hardware that generate results based on input after it has been processed. They transform data from machine language into a format understandable by users. Examples include printers, monitors, and projectors.

Key Points

• Below are explanations of several output devices. 

1. Monitor / Display Screen - The monitor serves as the primary output device for computers, also referred to as a visual display unit (VDU). It showcases icons, text, multimedia, and more on its screen, typically arranged in a clearly defined rectangular format. 

2. Printer - A printer is essential for producing physical copies of outputs on paper or other materials. Numerous types of printers are available today for various purposes, including Impact printers (which print characters on a ribbon) and Non-impact printers (where characters are generated without a ribbon). 

3. Speakers - Speakers generate sound output based on commands received from the computer. With advancing technology, we now have wireless speakers that operate via Bluetooth connectivity. 

4. Headphones - Headphones, also known as earphones or headsets, differ from speakers in terms of sound frequency. They are primarily designed for individual use and can also be wireless. Today, they come in various shapes and sizes. 

5. Projector - A projector displays videos and images on large screens in settings such as theatres and auditoriums. In the past, images were projected by shining light through a small transparent lens, whereas modern devices utilise laser technology for image and video display. 

6. Plotter - A plotter is designed to create high-quality drawings, designs, and graphics. It employs one or more pens or markers to draw continuous lines on paper or other suitable materials. A graphics card is required for its operation. 

7. Braille Reader - A Braille Reader assists users who are blind by converting text into Braille characters, enabling access to digital information. It aids those with low vision or blindness by allowing them to feel the characters on the device. 

• Additional examples include Television, Global Positioning System (GPS), and Video cards.