What Are Output Devices?
Output devices are hardware components that allow a computer to communicate information to the user. They take data from the computer and convert it into a form we can understand, such as images, hear sound, printed text or physical copies.
Types of Output Devices
Monitor
The main function of a computer monitor is to display the result of any data. For Example, if the user plays the video, the monitor's function is to play the video on the monitor. If a user opens any picture, the monitor's function is to display that picture.
Graphic Plotter Printer
A plotter is a computer hardware device much like a printer used for printing vector graphics. Instead of toner, plotters use a pen, pencil, marker, or another writing tool to draw multiple, continuous lines on paper rather than multiple dots, like a traditional printer.
Speakers and Headphones
What are speakers and headphones? Speakers and headphone are the output devices responsible for producing sounds.
Projector
At its core, a projector is an optical device that captures an image or video signal and projects it onto a surface, typically a screen or wall. Types of Projectors:- (1) LCD (Liquid Crystal Display) (2) LED (Light Emitting Diode) (3) DLP (Digital Light Processing)
Headphone
Headphones are a pair of small loudspeaker drivers worn on or around the head over a user's ears. They are electroacoustic transducers, which convert an electrical signal to a corresponding sound.
GPS(The Global Positioning System
The Global Positioning System relies on the relationship between GPS satellites and receivers on GPS-enabled devices. the Global Positioning System works when GPS satellites transmit "a unique signal and orbital parameters that allow GPS devices to decode and compute the precise location of the satellite."
optical mark readers
An optical mark reader (OMR) also known as optical mark recognization is an input device used to scan and read marks made by pencil or pen. It consists of a scanner that scans a filled form to detect which option is marked.
Braille readers
Writing system for blind and visually impaired people based on a notational convention for the transcription of other scripts
Optical Character Recognition OCR
OCR allows you to read machine-printed characters. Oftentimes, OCR is used to convert printed documents into text for editing in a word processor. In a forms processing application, OCR offers an easy way to capture information preprinted on the forms, such as ID numbers, class names, building numbers, and other demographic information.
Optical Mark Recognition (OMR
OMR allows you to read any “fill-in-the-bubble” type forms. Tests, surveys, elections, questionnaires, course evaluations, and many more types of forms require the use of OMR. Traditionally, OMR forms were read using specialized scanners and forms and often required respondents to use special pencils to fill in those forms. With the advent of software OMR solutions, first introduced in Remark Office OMR, there are no such constraints.
Intelligent Character Recognition (ICR)
ICR stands for Intelligent Character Recognition which is a fancy way to say it is reading handwritten text. ICR is quite powerful but is the least accurate of the technologies as there are so many variables when reading handwriting. Sometimes even humans have difficulty reading another person’s handwriting.
Actuator
What is an actuator? Actuators are the output devices responsible for creating real world movement. This could range from physically opening automatic shop doors to lowering the landing gears on a plane. They are often used in a computerised control system, acting upon a signal sent by the microprocessor. Actuators include electric motors, pistons and pumps. Typical applications for actuators Robotics Control Systems
InkJet Printer
InkJet Printer is a type of computer printing that recreates a digital image by propelling droplets of ink onto paper and plastic substrates.
Laser Printer
A laser printer is a popular type of computer printer that uses a non-impact photocopier technology where there are no keys striking the paper.
Dot matrix printer
A Dot Matrix Printer or Impact Matrix Printer refers to a type of computer printer with a print head that runs back and forth on the page and prints by impact, striking an ink-soaked cloth ribbon
Daisy wheel printer
A daisy wheel printer is a specific type of mechanical impact printer popular in the 1970s that used individual letter, number and symbol keys to imprint text on paper.
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