..Mahendran Chap 06 Output

Mahendran Chap 06 Output

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Mahendran Chap 06 Output - Presentation Transcript

OUTPUT
processed into useful form
4 Types of Output:
Text
Graphics
Audio
Video
Devices – Hardware component that conveys
information to one or more people
Display Devices
Output display that visually conveys text, graphics, and video information
2 Types of Display Devices
Flat-panel Displays
( LCD Monitors[uses a liquid crystal display to produce images])
( LCD Screens[produce colour using either active –matrix or passive matrix technology])
( Plasma Monitors[display device that uses gas plasma technology ,which sandwiches a layer of gas between two glass plates)
* LCD Technology-uses a liquids compound to present information on a device.
*LCD Quality-depends primarily on its resolution ,response time,brightness,dot pitch ,and contrast ratio.
CRT Monitors
Speaker, Headphones and Ear buds
Audio output device is a component of a computer that produces music, speech, and sounds.
Printer
Output device that produces text and graphics on a physical medium such as paper
3 Type of Printer
Nonimpact Printers
(forms characters and graphics on a piece of paper without actually striking the paper)
Ink-Jet Printers
(forms characters and graphics by spraying tiny drops of liquid ink onto a piece of paper )
Photo Printers
(a colour printer that produces photo-lab-quality pictures)
Printer ( cont )
Laser Printers
(a high speed ,high –quality nonimpact printer that operates in a manner similar to a copy machine,creating images using a laser beam and powdered ink,called toner
Thermal Printer
(generates images by pushing electrically heated pins against heat-sensitive paper)
Mobile Printer
(allows a mobile user to print from a notebook computer or other mobile device)
Printer ( cont )
Label and Postage Printers
(prints on an adhesive –type material that can be placed on a variety of items )
Plotters and Large-Format Printers
(sophisticated printers used to produce high-quality drawing )
Impact Printers
(forms characters and graphics on a piece of paper by striking a mechanism against an linked ribbon that physically contacts the paper)
Other Output Devices
Data Projectors text and images displaying on a
(device that takes the computer screen and projects them onto a larger screen so that an audience can see the image clearly)
Interactive Whiteboards
(a touch –sensitive device)
Force-Feedback Game Controllers and Tactile Output