Output Devices 1. Objectives Overview Describe the types of output Explain the characteristics of...
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Transcript of Output Devices 1. Objectives Overview Describe the types of output Explain the characteristics of...
![Page 1: Output Devices 1. Objectives Overview Describe the types of output Explain the characteristics of various display devices Describe the factors that affect.](https://reader035.fdocuments.net/reader035/viewer/2022081419/5697bf881a28abf838c8936d/html5/thumbnails/1.jpg)
Output Devices
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Objectives Overview
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Objectives Overview
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What Is Output?
• Output is data that has been processed into a useful form
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What Is Output?
• An output device is any type of hardware component that conveys information to one or more people
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Display Devices
• A display device visually conveys text, graphics, and video information
• A monitor is packaged as a separate peripheral– LCD monitor– Widescreen
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Display Devices
• Liquid crystal display (LCD) uses a liquid compound to present information on a display device
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Display Devices
• The quality of an LCD monitor or LCD screen depends primarily on:
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Display Devices
• Resolution is the number of horizontal and vertical pixels in a display device– A higher
resolution uses a greater number of pixels
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Display Devices
• Plasma monitors are display devices that use gas plasma technology and offer screen sizes up to 150 inches
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Display Devices
• Televisions also are a good output device– Require a converter if you
are connecting your computer to an analog television
• Digital television (DTV) offers a crisper, higher-quality output
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Display Devices
• A CRT monitor is a desktop monitor that contains a cathode-ray tube– Have a much larger footprint than do LCD monitors
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Printers
• A printer produces text and graphics on a physical medium– Printed information
is called a hard copy, or printout
– Landscape or portrait orientation
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Printers
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Before purchasing a printer, ask yourself a series of questions:
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Printers
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Printers
• A nonimpact printer forms characters and graphics on a piece of paper without actually striking the paper
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Printers
• An ink-jet printer forms characters and graphics by spraying tiny drops of liquid ink onto a piece of paper– Color or black-and-white– Printers with a higher dpi (dots per inch) produce a higher
quality output
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Printers
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Printers
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Printers
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Printers
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Printers
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Printers
• A multifunction peripheral (MFP) is a single device that prints, scans, copies, and in some cases, faxes– Sometimes called an all-in-one device
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Printers
• A thermal printer generates images by pushing electrically heated pins against the heat-sensitive paper
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Printers
• A mobile printer is a small, lightweight, battery-powered printer that allows a mobile user to print from a mobile device
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Printers
• A label printer is a small printer that prints on adhesive-type material
• A postage printer prints postage stamps– Postage also can be printed on other types of printers
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Printers
• Plotters are used to produce high-quality drawings
• Large-format printers create photo-realistic quality color prints on a larger scale
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Printers
• Impact printers form characters and graphics on a piece of paper by striking a mechanism against an inked ribbon that physically contacts the paper
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Printers
• A dot-matrix printer produces printed images when tiny wire pins on a print head mechanism strike an inked ribbon
• A line printer prints an entire line at a time
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Speakers, Headphones
• An audio output device produces music, speech, or other sounds
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Speakers, Headphones, and Earbuds
• Headphones are speakers that cover your head or are placed outside of the ear
• Earbuds (also called earphones) rest inside the ear canal
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Speakers, Headphones, and Earbuds
• Some speakers are specifically designed to play audio from a portable media player– Wireless speakers
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Speakers, Headphones, and Earbuds
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Other Output Devices
• Other output devices are available for specific uses and applications
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Other Output Devices
• A data projector is a device that takes the text and images displaying on a computer screen and projects them on a larger screen– Digital light processing
(DLP) projector
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Other Output Devices
• An interactive whiteboard is a touch-sensitive device, resembling a dry-erase board, that displays the image on a connected computer screen
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