`
`NETWORK-1 N1-2010
`NETWORK-1 N1-2010
`
`

`

`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 reproduced or transmitted in any form
`or by any means without the 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
`OO4'.03—-dc21
`
`2002
`
`200219714
`
`Printed and bound in the United States of America.
`
`23456789 QWT 765432
`
`Distributed in Canada by HE. Fenn and Company Ltd.
`
`A CIP catalogue record for this book is available from the British Library.
`
`Microsoft Press books are available through booksellers and distributors worldwide. For further informa-
`tion about international editions, contact your local Microsoft Corporation office or contact Microsoft
`Press International directly at fax (425) 936-7329. Visit our Web site at www.microsoft.com/mspress.
`Send comments to mspinpm©microsofi. com.
`
`Active Desktop, Active Directory, ActiveMovie, ActiveStore, ActiveSync, ActiveX, Authenticode,
`BackOffice, BizTalk, ClearType, Direct3D, Direchnimation, 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, Windows NT, Xbox are either registered trademarks or
`trademarks of Microsoft Corporation in the United States andfor other countries. Other product and
`company names mentioned herein may be the trademarks of 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 event is intended or should be inferred.
`
`Acquisitions Editor: Alex Blanton
`Project Editor: Sandra Haynes
`
`Body Part No. X08-41929
`
`

`

`Swatch
`
`symbol font
`
`cations of its principles have been evidenced in commu-
`nications networks, and robotics. See also artificial
`intelligence, robotics.
`
`Swatch a. Short for Simple Watcher. A UNIX log moni-
`toring and alarm program. Swatch filters system log data
`as specified by the user, forwarding only important data.
`Swatch also looks for patterns of changes made in the log
`file and alerts the user to system problems as they occur.
`
`swlm n. A condition in which images slowly move about
`the positions they are supposed to occupy on screen.
`
`SWING set a. A library of Java GUIs that run uniformly
`on any native platform that supports the Java Virtual
`Machine (JVM). Swing Set components have largely sup-
`planted Sun Microsystems’s Abstract Window Toolkit.
`See also Abstract Window Toolkit, graphical user inter-
`face, Java Virtual Machine.
`swltch n. l. A circuit element that has two states: on and
`off. 2. A control device that allows the user to choose one
`
`of two or more possible states. 3. In communications, a
`computer or electromechanical device that controls rout-
`ing and operation of a signal path. 4. In networking, a
`device capable of forwarding packets directly to the ports
`associated with particular network addresses. See also
`bridge, multilayer, router. 5. In operating systems such as
`MS-DOS, an argument used to control the execution of a
`command or an application, typically starting with a slash
`character (I).
`swltch box It. An enclosure that contains a selector
`
`switch. When a user selects a switch setting, the signal
`passing through the box may be directed either from a
`single input to one of multiple outputs, or from the
`selected input to a single output. Switch boxes are often
`used to connect multiple peripherals, such as printers, to
`a single port.
`
`swltched conflguratlon n. A communications link in
`which a signal moves from the origin to a switch that
`routes the signal to one of several possible destinations.
`Compare point-to-point configuration.
`
`swltched Ethernet n. An Ethernet network run through
`a high-speed switch instead of an Ethernet hub. A
`switched Ethernet involves dedicated bandwidth of 10
`
`Mbps between stations rather than a shared medium. See
`also Ethernet (definition I), switch (definition 3).
`
`swltched llne n. A standard dial-up telephone connec-
`tion; the type of line established when a call is routed
`through a switching station. Compare leased line.
`
`Swltched Multlmegablt Data Servlcos 11. See SMDS.
`swltched network :2. A communications network that
`
`uses switching to establish a connection between parties,
`such as the dial-up telephone system.
`Swltched T1 n. A circuit-switched form of T1 communi-
`cations. See also Tl.
`
`swltched vlrtual clrcult n. See SVC.
`
`Swltchel' n. A special Macintosh utility that allowed
`more than one program to be resident in memory at one
`time. Switcher was made obsolete by MultiFinder. See
`also MultiFinder.
`
`swltchlng n. A communications method that uses tempo-
`rary rather than permanent connections to establish a link
`or to route information between two parties. In the dial-up
`telephone network, for example, a caller’s line goes to a
`switching center, where the actual connection is made to
`the called party. In computer networks, message switching
`and packet switching allow any two parties to exchange
`information. In both instances, messages are routed
`(switched) through intermediary stations that together
`serve to connect the sender and the receiver.
`
`swltchlng hub n. A central device (switch) that connects
`separate communication lines in a network and routes
`messages and packets among the computers on the net-
`work. The switch functions as a hub, or PBX, for the net-
`work. See also hub, packet (definition I), PBX, switch
`(definition 3), switched Ethernet, switched network.
`
`swltchlng speed 21. In a packet-switching telecommuni-
`cations technology, such as ATM, the speed at which data
`packets are sent through the network. Switching speedis
`generally measured in kilobits or megabits per second. See
`also ATM (definition 1), packet switching.
`
`SYLK flle 21. Short for symbolic linkfile. A file con-
`structed with a proprietary Microsoft format, used prima-
`rily for exchanging spreadsheet data in such a way that
`formatting information and intercellular data value rela-
`tionships are preserved.
`
`symbol :1. In programming, a name that represents a reg-
`ister, an absolute value, or a memory address (relative or
`absolute). See also identifier, operator (definition 1).
`
`symbol font a. A special font or typeface that replaces
`the characters normally accessible from the keyboard with
`alternative characters used as symbols, such as scientific,
`linguistic, or foreign-alphabet characters.
`
`505
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`