output device

Monday, April 10, 2023 PRESENTATION:OUTPUT DEVICES 1

OUTPUT DEVICESSUBMITTED BY: M.BAQAR ZAIDI

SUBMITTED TO: MISS SABIKA

AL-HADI ACADEMY

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OUTPUT DEVICESDEFINITION:Any device that outputs information from a computer is called an output device.

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TYPES OF OUTPUT DEVICES THE MONITOR THE PRINTER THE PLOTTER THE SPEAKER FACSIMILE TRANSMISSION INTERNET TELEPHONY MULTIFUNCTIONAL DEVICES

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THE MONITORDEFINITION:The monitor is the most common and the most important output device. It is also called a visual display unit. The output viewed on a monitor is called soft copy.

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TYPES OF MONITOR THE CATHODE RAY TUBE (CRT) THE LIQUID CRYSTAL DISPLAY (LCD) THE PLASMA SCREEN THE E-BOOK READER THE DATA PROJECTER HIGH-DEFINITION TELEVITION (HDTV)

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The CRT MonitorDEFINITION:CRT stands for Cathode Ray Tube. CRT monitors are older types of monitors. The are curved and bulky.

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The LCD MonitorDEFINITION:LCD stands for Liquid Crystal Display. LCD monitors are more advanced. They provide a flat image and do not flicker.

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The Plasma ScreenDEFINITION:Plasma screens are bright screens that can be produced in large size (up to 84 inches). They are used in televisions and are more expensive than CRTs and LCDs.

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The E-Book ReaderDEFINITION:An E-book (electronic book) reader is a hand-held, book-sized device that displays text and graphics

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The Data ProjectorDEFINITION:A data projector projects output on a large screen or wall. Data projectors are used to give presentations in class rooms and offices.

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The HDTVDEFINITION:High-definition television applies microcomputer technology to television. It is also called PC/TV. HDTV gives a clearer and more detailed wide-screen picture than ordinary TV.

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THE PRINTERDEFINITION:A printer is an output devices to print text and images on paper or other media. Such output is hard copy

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TYPES OF PRINTER

THE LASER PRINTERTHE THERMAL PRINTERTHE INK-JET PRINTERTHE DOT-MATERIX PRINTER

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The Laser PrinterDEFINITION:The laser printer can print large quantities at a great speed. It is also called page printer because it print a complete page at a time. There are two types of laser printer.1.Personal laser printer 2.Shared laser printer

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The Thermal PrinterDEFINITION:A thermal printer is a printer that uses heat to burn an image onto specially-treated paper. These printers are used at some POS terminals.

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The Inkjet PrinterDEFINITION:An ink-jet printer prints text and images by spraying ink of different colours at a high speed. The speed is measured in page per minute (ppm).

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The Dot Matrix PrinterDEFINITION:A dot-matrix printer printers character and images by using a series of small pins on a print head. It is also called a character printer because it prints one character at a time.

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THE PLOTTERDEFINITION: A plotter is a special printer that produces high-quality output using pens. Plotters create large-sized, multicolored documents like maps and engineering drawing.

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THE SPEAKER

DEFINITION: A speaker transmits output in the form of sound. A sound card installed on a computer produces high-quality sound for music and games.

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FACSIMILE TRANSMISSION:THE FAX MACHINE

DEFINATION: A fax machine sends and receives messages over telephone lines. It uses regular telephone lines to send copies of document which may include drawings as well as text.

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INTERNET TELEPHONYDEFINITION:Internet telephony uses the internet instead of telephone lines to connect two or more people via telephone calls can be made cheaply. Microphone and headset/speaker are connected to the computer at the two ends. This can be used like a telephone receiver to have conversations.

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MULTIFUNCTIONAL DEVICES

DEFINITION:Multifunctional devices combine the capabilities of a scanner ,fax machine ,printer and a photocopier. The quality of output is poorer than produced by separate , single-purpose devices