Microsoft
`
`Computer
`Dictionary ©
`
`Fifth Edition
`
`APPLE-1025
`
`1
`
`APPLE-1025
`
`

`

`PUBLISHED BY
`Microsoft Press
`A Division of Microsoft Corporation
`One Microsoft Way
`Redmond, Washington 98052-6399
`
`Copyright © 2002 by Microsoft Corporation
`All rights reserved. No part of the contents of this book may be reproducedortransmitted in any form
`or by any meanswithoutthe written permission of the publisher.
`
`Library of Congress Cataloging-in-Publication Data
`Microsoft Computer Dictionary.--5th ed.
`p.;cm.
`ISBN 0-7356-1495-4
`1. Computers--Dictionaries.
`
`2. Microcomputers--Dictionaries.
`
`AQ76.5. M52267
`004'.03--dc21
`
`2002
`
`200219714
`
`Printed and boundin the United States of America.
`123456789 QWT 765432
`Distributed in Canada by Penguin Books Canada Limited.
`
`A CIP cataloguerecord for this book is available from the British Library.
`Microsoft Press booksare available through booksellers and distributors worldwide. For further informa-
`tion aboutinternational editions, contact your local Microsoft Corporation office or contact Microsoft
`Press Internationaldirectly at fax (425) 936-7329. Visit our Web site at www.microsoft.com/mspress.
`Send comments to mspinput@microsoft.com.
`
`Active Desktop, Active Directory, ActiveMovie, ActiveStore, ActiveSync, ActiveX, Authenticode,
`BackOffice, BizTalk, ClearType, Direct3D, DirectAnimation, DirectDraw, DirectInput, DirectMusic,
`DirectPlay, DirectShow, DirectSound, DirectX, Entourage, FoxPro, FrontPage, Hotmail, IntelliEye,
`IntelliMouse, IntelliSense, JScript, MapPoint, Microsoft, Microsoft Press, Mobile Explorer, MS-DOS,
`MSN,Music Central, NetMeeting, Outlook, PhotoDraw, PowerPoint, SharePoint, UltimateTV,Visio,
`Visual Basic, Visual C++, Visual FoxPro, Visual InterDev, Visual J++, Visual SourceSafe, Visual Studio,
`Win32, Win32s, Windows, Windows Media, WindowsNT, Xboxareeither registered trademarks or
`trademarks of Microsoft Corporation in the United States and/or other countries. Other product and
`company names mentioned herein may be the trademarksof their respective owners.
`
`The example companies, organizations, products, domain names, e-mail addresses, logos, people, places,
`and events depicted herein are fictitious. No association with any real company,organization, product,
`domain name,e-mail address, logo, person, place, or eventis intended or should be inferred.
`
`Acquisitions Editor: Alex Blanton
`Project Editor: Sandra Haynes
`
`Body Part No. X08-41929
`
`2
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`

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`sporea
`
`luminance ~
`
`illegal operation might be impossible for a program or
`system becauseofbuilt-in constraints. Compareinvalid.
`Iluminance n. 1. The amountoflight falling on,orillu-
`minating, a surface area. 2. A measure ofillumination
`(such as watts per square meter) used in reference to
`devices such astelevisions and computerdisplays. Compare
`luminance.
`
`IM n. See instant messaging.
`iMac n. A family of Apple Macintosh computersintro-
`duced in 1998. Designed for nontechnicalusers, the iMac
`has a case that contains both the CPU andthe monitor and
`is available in severalbright colors. The “i” in iMac stands
`for Internet; the iMac was designed to makesetting up an
`Internet connection extremely simple. Thefirst version of
`the iMac included a 266-MHz PowerPC processor,a 66-
`MHzsystem bus,a hard drive, a CD-ROMdrive, and a 15-
`inch monitor, with a translucentblue case. Later iMacs
`camewith faster processors and a choice ofcase colors.
`
`See the illustration. See also Macintosh.
`
`IMac.
`
`image n. A file extension for a Macintosh Disk Image, a
`storage type often used on Apple’s FTP software down-
`loadsites.
`
`imagen.1. A stored description of a graphicpicture,
`either as a set of brightness andcolorvalues of pixels or as
`a setof instructions for reproducing thepicture. See also
`bit map, pixel map. 2. A duplicate, copy, or representation
`ofall or part of a hard orfloppy disk, a section of memory
`or hard drive, a file, a program,or data. For example, a
`RAM disk can hold an image ofall or part of a disk in
`main memory;a virtual RAM program can create an
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`“imageediting |
`
`image of someportion of the computer’s main memory on
`disk. See also RAM disk.
`
`image-based rendering n. See immersive imaging.
`image color matching n. The processof image output
`correction to match the same colors that were scanned or
`input.
`Image compression n.Theuse of a data compression
`technique on a graphical image. Uncompressed graphics
`files tend to use up large amounts ofstorage, so image
`compressionis useful to conserve space. See also com-
`pressedfile, data compression, video compression.
`image compression dialog component n. An applica-
`tion programminginterface that sets parameters for com-
`pressing images and image sequences in QuickTime, a
`technology from Appleforcreating, editing, publishing,
`and viewing multimedia content. The componentdisplays a
`dialog box as a userinterface, validates and stores the set-
`tings selected in the dialog box, and oversees the compres-
`sion of the imageor imagesbased onthe selectedcriteria.
`Image Compression Managern. A major software
`componentused in QuickTime, a technology from Apple
`for creating, editing, publishing, and viewing multimedia
`content. The Image Compression Manageris an interface
`that provides image-compression and image-decompression
`services to applications and other managers. Becausethe
`Image Compression Manageris independentofspecific
`compression algorithms anddrivers, it can present a com-
`mon application interface for software-based compressors
`and hardware-based compressorsandoffer compression
`optionsso thatit or its application can use the appropriate
`tool for a particular situation. See also QuickTime.
`Image compressor componentn. A software compo-
`nentused by the Image Compression Manager to compress
`image data in QuickTime,a technology from Apple for
`creating,editing, publishing, and viewing multimedia con-
`tent. See also Image Compression Manager, QuickTime.
`Image decompressor componentn. A software compo-
`nentused by the Image Compression Manager to decom-
`press image data in QuickTime,a technology from Apple
`for creating,editing, publishing, and viewing multimedia
`content. See also Image Compression Manager, QuickTime.
`imageediting n. The processof changingor modifying a
`bitmapped image,usually with an imageeditor.
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