Output devices

50 %
50 %
Information about Output devices

Published on March 12, 2014

Author: ABUBAKAR270



This is about output devices of computers. Enjoy.

OUTPUT DEVICES Output devices are hardware devices that allow data to be output from a computer. 1 BY VIGNESH, ABUBAKAR AND KARE

CRT Monitors • CRT monitors are the least expensive type of monitor and they use an electron gun to fire against a phosphor screen to create a picture. • USES: They are used with light pens, for example to allow designs to be created on screen. • ADVANTAGE: The angle of viewing is still better than with a TFT monitor. • DISADVANTAGE: They run very hot and can cause fire if left unattended. BY VIGNESH, ABUBAKAR AND KARE2

TFT MONITORS • TFT monitors have screens made up of many tiny pixels which are made up of transistors controlled by a microprocessor. • USES: They are an integral part of laptop computers. • ADVANTAGES: They consume much less power and don’t generate as much heat as a CRT monitor. • DISADVANTAGES: The definition is sometimes not as good as CRT monitors. BY VIGNESH, ABUBAKAR AND KARE3

LASER PRINTERS • Laser printers produce a very high quality hard copy output. They rely on large buffer memories where data for the whole document is stored before the pages can be printed out. • USES: They are the best option for fast high quality and high volume printing. • ADVANTAGES: They can handle very large jobs and the quality is consistently high. • DISADVANTAGES: They are fast only for several copies printed. BY VIGNESH, ABUBAKAR AND KARE4

INKJET PRINTERS • Inkjet printers are used to produce good quality hard copies. These printers don’t have to have large buffers, so printing is done a bit by time. • USES: Inkjet printers are used where low output volumes are required. • ADVANTAGES: They are very lightweight and have a small footprint. • DISADVANTAGES: Printing can smudge if not used carefully. BY VIGNESH, ABUBAKAR AND KARE5

3D INKJET PRINTERS • These are a new type of printer that produce solid 3D models using modified inkjet technology. This technology is known as ‘tomography’, thin layers of fine powder are bounded together as a 3D model. • USES: Inkjets are used to produce prototypes which are actually work from CAD packages, Photograph images, stored drawings, etc. • ADVANTAGES: The powders used can be often grouped and reused. • DISADVANTAGES: 3D inkjet printers are expensive to buy. BY VIGNESH, ABUBAKAR AND KARE6

DOT MATRIX PRINTERS • Dot matrix printers are a type of impact printer, where a print head presses against an inked ribbon. They tend to be noisy, slow and the output is not of good quality. • USES: They can be used in noisy environments and in applications where print quality is not very important. • ADVANTAGES: They are very cheap to run and maintain. • DISADVANTAGES: They are very slow and the printing quality is of poor quality. BY VIGNESH, ABUBAKAR AND KARE7

PLOTTERS • Plotters are devices that produce hard copies, but operate in a different way to printers. They produce highly accurate, very large drawings and posters. • USES: They are used to produce large pictures for use on billboards or giant posters. • ADVANTAGES: The print quality is extremely high. • DISADVANTAGES: They are expensive both to buy and maintain. BY VIGNESH, ABUBAKAR AND KARE8

SPEAKERS • Speakers can be connected directly to a computer or are built into the monitor or casing. Digital data from the computer is converted into analogue form, using a digital analogue converter (DAC). • USES: They are used to play downloaded sound files. BY VIGNESH, ABUBAKAR AND KARE9

MULTIMEDIA PROJECTORS • Multimedia projectors receive signals that can be either analogue or digital. The signal source is usually from the computer, television or DVD player. • USES: Multimedia projectors are used for training presentations. • ADVANTAGES: They enable many people to see a presentation rather than all of them crowding round a small computer screen. • DISADVANTAGES: Images can sometimes be fuzzy BY VIGNESH, ABUBAKAR AND KARE 1 0

CONTROL DEVICES • Control devices are another type of output device that are used to control processes in conjunction with sensor devices. BY VIGNESH, ABUBAKAR AND KARE 1 1

ACTUATORS • Actuators are transducers and are used to take signals from a computer and convert them into some form of motion, for example operating motors, pumps, switches and valves. BY VIGNESH, ABUBAKAR AND KARE 1 2

MOTORS • USES: Motors are used in many domestic appliances such as cookers, water pumps and automatic greenhouses to open windows. • They are used to control robot arms in industry • In computers, they operate fans, disk drives and DVD drives. BY VIGNESH, ABUBAKAR AND KARE 1 3

BUZZERS • Buzzers are switched on or off by the actuator. • USES: Buzzers are used in cookers and microwave ovens to tell the operator when the cooking process is complete. • They are used in burglar alarm systems to warn if intruders are present BY VIGNESH, ABUBAKAR AND KARE 1 4

LIGHTS • The actuator is connected to the switch that turns the lights on or off. • USES: They are used for security lights. • Lights are used in greenhouses to control the lighting conditions. BY VIGNESH, ABUBAKAR AND KARE 1 5

HEATERS • Actuators are connected to switches which turn the heater on or off. • USES: They are used in automatic washing machines, cookers and central heating systems. • They are used in automatic greenhouses to control the temperature. BY VIGNESH, ABUBAKAR AND KARE 1 6

THANK YOU. CREDITS Abubakar – Animator Vignesh – Slide Designer Kare – Editor I.C.T Project BY VIGNESH, ABUBAKAR AND KARE 1 7

Add a comment

Related presentations

Related pages

Output device - Wikipedia, the free encyclopedia

Display devices. A display device is an output device that visually conveys text, graphics, and video information. Information shown on a display device is ...
Read more

Output device - Computer Hope

Computer dictionary definition for what output device means including related links, examples, information, and terms.
Read more

What is Output Device? Webopedia Definition

Any machine capable of representing information from a computer. This includes display screens, printers, plotters, and synthesizers.
Read more

What is an Output Device? - Definition from Techopedia

Output Device Definition - An output device is any device used to send data from a computer to another device or user. Most computer data output that...
Read more

Output device - definition of output device by The Free ...

output device n. A device, such as a printer, video display, or speaker, that presents data from a computer to a user. output device A machine showing ...
Read more

Input/output - Wikipedia, the free encyclopedia

Input/output This article does not cite any sources. Please help improve this article by ... the output from these devices is the computer's input.
Read more

Output Devices - Wikiversity

In order to make use of a computer, some form of output devices must be used to allow the user to understand what is going on inside the machine.
Read more

Computer Output Devices - Tutorials for MFC, SAP HR, Yii ...

Computer Output Devices - Learn computer fundamental concepts in simple and easy steps starting from Overview, Applications, Generations, Types, Components ...
Read more

Types of Computer Output Devices | Techwalla

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,…
Read more Wörterbuch :: devices :: Deutsch-Englisch ...

Englisch-Deutsch-Wörterbuch: devices » Übersetzung(en) tabellarisch anzeigen | immer ... output devices Ausgabegeräte {pl}comp.electr. peripheral devices
Read more