Hey do you want to know TOP 5 Output Devices of Computer: Definition Function & Examples then should read this article.
Output Devices
Table of Contents
Output devices are peripheral, which are employed to get the output from the computer. The result of the processed data is obtained by using output devices. The Output unit is used for displaying or printing the process data in a user-readable form.
Monitor
The monitor is the most common output device. It is also called the Visual Display Unit, an electronics visual display for computers. Just like a television, a monitor also displays the output on the screen.
The picture on a monitor is made up of thousands of small colored dots called pixels. The output displayed on the monitor is called Softcopy. The Monitor is used to display the processed result. It is the most important device.
The monitor looks like a television but the resolution of the monitor is many times higher than that of the Television. Monochrome CRT monitors were used in the early computer era. Still somewhere using monochrome CRT monitor computerized cash register systems.
A color monitor proved to be more popular than monochrome monitors, as it displayed results in multiple colors. These monitors implement the RGB color model using three different phosphors, which when activated appear as red, green, and blue. In this, the number of colors is assumed to be APPROX 1M.
Types of Monitor-
CRT (Cathode Ray Tube) Monitor
CRT monitors were the most common monitors until flat panel screens became affordable. They consist of an electron gun. In these monitors, a beam of electronics lights up the pixels dots which forms the inner coating of the screen. Color is achieved by combining Red, Green, and Blue shades of different intensities.
CRT monitors are bulky and occupy a lot of space. They are available in various sizes like 14 Inches, 15 Inches, and 21 Inches. A CRT monitor still has better contrast ratio viewing angles than other types of computer monitors.
LCD /TFT Monitor
LCD monitors are relatively thinner and lighter than CRT monitors. They use the light modulation properties of Liquid Crystals. Liquid Crystal does not emit light directly. They save a lot of space and can be mounted on walls.
LCD monitors provide a wide viewing angle and come in various sizes ranging from 17 Inches to 60 Inches. They Display sharp images and require less power to run.
A Light Crystal Display is used in a wide range of applications including computer monitors, television, instrumental panels, etc. They are also used in devices such as clocks, watches, calculators radio players, gaming devices, and telephones.
Touch Screen Monitor
A Touch screen is a special type of monitor that allows the user to input information by touching the Icons or graphics buttons present on the screen. One can enter only a limited amount of data by using touch screen technology.
A Touch screen Monito is also used in ATM machines, offices, and cineplexes to retrieve the desired information. Touch screen monitors are used in many supermarkets and museums to give information about products and objects of historical Importance respectively.
Printers
A Printer is a peripheral device used for printing the output on paper or any other printable media. The printer provides the hard copy (printer material on Paper). The printer can be broadly classified into two types-
Impact Printer
Impact printers allow physical contact between the printer head and paper. i.e they print by the impact of dot wires on paper. they are also called character printers.
Impact printers are classified as follows:
- Daisy Wheel Printers:
These printers have good letter formation capability but cannot produce graphics. They produce letter-quality documents. The speed of these printers various from 60 CPS (Character Per Second) to 120 CPS.
2. Dot Matrix Printers:
They are the Only Impact printers is used nowadays. They are noisy and do not have good printing quality. As a result, they are losing popularity. Besides text, they are capable of printing charts and graphics. They are relatively economical.
Dot Matrix Printers have either 9 or 24 pins on the print head. They use a matrix of small pins to create precise dots on paper to form characters. The speed of the dot matrix ranges from 40 CPS to 400 CPS. As they are robust in nature, they can also be used in rough conditions. Eg: In factories Schools.
Non-Impact Printers
Non- Impact Printers do not allow physical contact between the heads and paper i.e. they do not strike against the ribbon or the paper which is being printed. Only the INK used for printing touches the paper.
Non-impact printers have gained popularity because they are comparatively quieter than Impact printers and have better quality. In addition, they can also produce colored graphics.
Types of Non-impact printers-
- Thermal Printers
- Ink-jet Printers
- Laser Printers
3. Speaker
Speaker is a computer hardware output device, which is used to listen to computer sound. When we play any audio, video on the computer, then we are able to hear it only through the speaker.
If you want to connect the speaker to the computer, then the computer has a green port (Audio Jack) through which you can connect speakers and headphones. If you use a laptop, then it has a built-in speaker, apart from this, you also have a green port on which you can connect to the external port.
Nowadays USB speakers and Bluetooth speakers are available in the market, if your computer has Bluetooth then you can use the wireless speaker. The user needs to install a sound driver to operate the speaker.
Types of Speaker –
- Sub-woofers
- Studio Monitor Speaker
- Loudspeakers
- Floor Standing Speaker
- Central Channel Speaker
- Bookshelf Speaker
- In-Wall/In-Ceiling Speakers
- On Wall Speakers
- Outdoor Speaker
- Bluetooth Speaker
You can use any of the above speaker types and enjoy the Audio, Video, Game, etc.
4. Plotters
A Plotter is an output device that is used for print graphics plots on paper or polyester films. Plotters are diffrent from printers. They are generally vector-based and draw lines using a pen. Vector base means from point to point, compared to the normal based system.
Vector-based printing gives better lines and graphics. Plotters are basically used for graphical applications like computer-aided design (CAD) and for printing maps and drawings.
There are two types of plotters: Flatbed Plotters and Drum Plotters. Modern plotters made by HP use either Deskjet or Laserjet technology. Common manufactures include Hewlett Packard and Roland.
5. Projector
A projector is an Output device that is used to display large size of resolution. A projector plays a vital role in training, presentations, meetings, etc. You can easily view any information in a hall through a projector.
There are three types of Projector-
- DLP Projector
- LCD Projector
- LED Projector
FAQ : Output Devices of Computer
Q1. Which technology is used in a laser printer? What are its basic features?
Ans. Laser printers used photocopy technology to print. They use a laser beam and dry powdered ink to produce a high-quality dot matrix pattern. They can print graphic images too. they are ideally used when good quality and large-scale printing is required. The resolution is very high, approximately 600-1200 dots per inch.
Q2. Write the application of an LCD monitor.
Ans. An LCD monitor uses the light modulating properties of liquid crystals. it is gaining popularity because of its excellent images quality and consumes less power. LCD technology is used in computer monitors, television, instrumental panels, aircraft cockpit display, etc.
Q3. Write the types of Plotters? Name the two manufacturers of plotters.
Ans. There are two types of plotters: Flatbed Plotters and Drum Plotters. Modern plotters made by HP use either Deskjet or Laserjet technology. Common manufactures include Hewlett Packard and Roland.
Q4. Explain the three main types of non-Impact printers.
Ans. The main three types of non-impact printers are followings-
Thermal Printers
Ink-jet Printers
Laser Printers
Q5. What are the 5 output devices?
Ans. The most common 5 output devices examples are followings
Monitor, Printer, Speaker, Projector and Plotters.
Q6. What is an Output Device of computer?
Ans. Output devices are peripheral, which are employed to get the output from the computer. The result of the processed data is obtained by using output devices. The Output unit is used for displaying or printing the process data in a user-readable form.
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