When raw data is fed into a computer through an input device, the output device displays the outcome of that data’s processing. There are a variety of output devices that may show output in a variety of formats, including text, photos, hard copies, audio, and video, among others.
The monitor is the computer’s display device, which is sometimes known as the screen. As the primary output device, it is responsible for displaying the processed data or information in the form of text, graphics, audio, or video.
A printer is used to print physical copies of the data that has been processed. Image printing, text printing, and any other type of information printing are all made possible by this device.
Impact Printers and Non-impact Printers are the two types of printers that are distinguished by the printing method they use.
Printers that do not use an impact mechanism to produce characters or images do not use a print head or hammer to strike an ink ribbon placed against the paper in order to print characters or images. There is no physical contact between the paper and the printing apparatus when using this method to print characters and pictures. Page printers are printers that can print a single page at a time, which is why they are also known as single-page printers. Printers that do not use an impact mechanism include laser printers and inkjet printers, which are both prevalent.
Projectors are output devices that allow users to project their output onto a large surface, such as a huge screen or a wall, depending on the model. It may be used to display the output of a computer and other similar devices onto a screen when they are connected. Magnification is achieved by the use of light and lenses to generate magnified words, pictures, and videos As a result, it is an excellent output device for giving presentations or teaching large groups of people.
Modern projects (digital projectors) are equipped with a variety of input sources, including HDMI connectors for newer equipment and VGA ports for older equipment. Some projectors are also built to work with Wi-Fi and Bluetooth, which are optional features. They may be mounted to the ceiling, placed on a stand, and utilised for a variety of purposes including classroom instruction, providing presentations, creating home theatres, and more.
A digital projector may be divided into two categories:
LED (Liquid Crystal Display) digital projector: LED digital projectors are becoming increasingly popular since they are small, lightweight, and produce sharp image quality on a screen. The output of an LCD projector is generated by the use of transmissive technology.
Light from a regular bulb is able to travel through the three coloured liquid crystal light panels because of this device’s unique design. As a result, certain colours travel through the panels while others are blocked by the panels, and pictures are displayed on the screen.
Using a Digital Light Processing (DLP) digital projector, you may get high-quality images since it contains a collection of small mirrors, one for each pixel of the image and so provides high-quality images. These projectors are mostly utilised in theatres because they meet the demand for high-quality video output that is required.