`
`INTEL 1008
`
`INTEL 1008
`
`1
`
`
`
`
`
`
`ELECTRICAL&pietionarvor(JOMPUTER
`
`
`
`ENGINEERING
`
`2
`
`
`
`The General Libraries
`The University of Texas at Austin
`
`¢——______-
`
`K
`THE LIBRARY
`OF
`[HE UNIVERSITY
`OF TEXAS
`AT
`AUSTIN
`
`- Aristotle
`
`Gommemorating the academic
`achievements of
`Min-Soo Noh
`
`PHD
`
`PHD , 2003.
`
`thefacts and
`Let usfirst unde
`then we may see the cause.
`,
`
`3
`
`
`
`
`
` McGraw-Hill |
`
`
`
`Dictionaryof
`Electrical and |
`Computer
`Engineering
`
`
`
`
`
` ;eneral Libraries
`sity of Texas at Austin
`a
`
`
`
`|
`
`McGraw-Hill
`.
`New York Chicago San Francisco Lisbon London Madrid
`Mexico City Milan New Delhi San Juan Seoul Singapore
`Sydney Toronto
`
`1 see the cause.
`- Aristotle
`
`orating the academic
`hievements of
`in-Soo Noh
`
`PHD
`
`PHD , 2003
`
`
`
`inderstandthefacts and
`
`4
`
`
`
`The McGraw-Hill companies
`
`All text in the dictionary was published previously in the McGRAW-HILL
`DICTIONARY OF SCIENTIFIC AND TECHNICAL TERMS, Sixth Edition,
`copyright © 2003 by The McGraw-Hill Companies,Inc. All rights reserved.
`McGRAW-HILL DICTIONARY OF ELECTRICAL AND COMPUTER ENGINEER-
`ING, copyright © 2004 by The McGraw-Hill Companies,Inc. All rights reserved.
`printed in the United States.of America. Except'as permitted under the United
`States Copyright Act of 1976, nopart of this publication may be reproduced or
`distributed in any form or by any means,of stored in a database or retrieval
`system, without the prior written permission of the publisher.”
`1234567890 DOC/DOC- 0987654.
`
`ISBN 0-07-144210-3
`»
`This book is” printed on recycled, “acid-free paper containing a
`minimum of 50% recycled, de-inked fiber.
`This book was set in Helvetica Bold and Novarese Book by TechBooks, Fairfax,
`Virginia.It was:printed and bound by RR Donnelley, The Lakeside Press.
`McGraw-Hill booksare available at special quantity discounts to use as premi-
`ums and sales promotions, or for use in corporate training programs. For
`more information, please write to the Director of Special Sales, Professional
`Publishing, McGraw-Hill, Two Penn Plaza, New York, NY 1012 1-2298. Or contact
`your local bookstore.
`
`2004049888
`
`Library of Congress Cataloging-in-Publication Data
`McGraw-Hill dictionary of electrical and computerengineering.
`_
`~p.
`cm.
`ISBN 0-07-144210-3
`1, Computer engineering—Dictionaries.
`Dictionaries.
`
`2. Electric engineering—
`
`TK7885.A2M37
`004’.03—de22
`
`2004
`
`
`
`5
`
`
`
`Contents
`
`
`
`
`0987694
`
`
`
`
`
`
`iblished previously in the McGRAW-HILL
`VD TECHNICAL TERMS, Sixth Edition,
`4ill Companies,Inc. All rights reserved.
`PHOTACE ooancecccccessssssssscccssesvessssesseesceseseestnnsnsassescessaeaceevansanenecceseesceasennansssseeueceseesessaasenisseecesteecesitnVv
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`‘LECTRICAL AND COMPUTER ENGINEER-
`How to Use the Dictionary occccssssssntmnmetntsesnsienatnanaceenneiesvii
`
`taw-Hill Companies,Inc. All rights reserved.
`Fields and Theit SCOPC oo...cesseshiesssnecssssrnesmennestinansasetsstsatnneeceeeninati ix
`
`erica, Except’as permitted under the United
`Pronunciation Key occsssnensssetnessessmssssatsnssssesssenussscsssensseseeesecnnexi
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`
`itt of this publication rnay be reproduced or
`1-642
`A-Z Terms...............
`
`
`means, or stored in a database or retrievalresereceeeeeeetmneeetemnsnnnnssseetsunsetinnsssnassaseeesaaserensssennaseninsnise643-679APPOMixeeeeee
`
`
`
`ermission of the publisher.
`Equivalents of commonlyusedunits for the U.S.
`
`’
`Customary System and the metric system ou...seevsssseseenensesvaneneseeeees 645
`
`Conversion factors for the U.S. Customary System,
`
`metric system, and International System 00... 646
`
`Standard equations oi. csscssesssvesssssssssssessssnsssesssssssersssesssseesssessssssssvessesssssaveess 65
`
`
`ceccssssmuseeneseeeccenmuusetbeasssseeeeseeuusseectesee_pessssastnateanssasaapee655
`Special CONSANES an
`
`
`Physical constants 0c
`
`
`Electrical and magnetic UNitS necssssesssnssesssatttnetshsceseatsannnisteesseettn657
`
`Dimensional formulas of common quantities.....
`658
`
`
`Internal energy and generalized WOKecon658
`
`
`Trigonometric FUNCTIONS occceeccsssssnsssssseseseesesssecsessssssessessnssecerecrsssterutanneveis659
`
`Generalrules of differentiation and integration sesesestessisecavetessressesesssssurenueoeny661
`Basic integral tranSfOrms ....cecscsssscssssssssssnlesnsssesuseussssiusssassssastnssonee 664
`
`Mathematical notation .a..csscnesmuonnonsunnnisnuirsusssisee665
`
`Schematic electronic SYMBOIS eeo-csscecsostosnveeveeoeerece
`
`Partial family tree of programming languages.
`
`
`
`
`
`
`
`=
`n recycled, acid-free paper containing a
`1, de-inkedfiber.
`8
`.
`d and Novarese Book by TechBooks,Fairfax,
`by RR Donnelley, The Lakeside Press.
`t special quantity discounts to use as premi-
`yr use in corporate training programs. For
`i the Director of Special Sales, Professional
`1 Plaza, New York, NY 10121-2298. Or contact
`
`n-Publication Data
`
`al and computer engineering.
`
`ASCII COME vocceccccescscssccscsssssssvessussssssessesessssuversescensseceveveenneers
`
`Electromagnetic spectrum nuniiniiniuinnnaniiirsiii,681
`Microwave frequency Dandoo... cccccccscsssssssssssssssseteccssvssssesssessssssnessenssssseputssiessseveces 681
`Radio SPECEIUM oiccccccsccssesuessssuessessesssessasvesssssssssvsssssesevesvevessnscenvessasnessessansssannivesnana 682
`
`ictionaries.
`
`2. Electric engineering—
`
`2004049888
`
`
`
`6
`
`
`
`ero by yovides services for and controls the runningof—supervoltage «{ELEc| A voltage in the range of 500mutual interference. { [sti-par'pdzd 'SOr-ky ‘
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` surface-acoustic-wave device
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`bution system, using’ a siriglé common charinel
`arty of
`[COMPUT scifA collection: of pro-
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`sarvisot
`provided for other channels,
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`to'transmit signals.
`_{ isipartviz-o-ré"'sis-tom }
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`ser programs.
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`y van-
`superposition integral
`[CONT sys} An iti
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`to. 2000‘kilovolts, used for some xray tubes.
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`which expresses the response ofa linea; ey
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`step response of the system;it may be thoug
`perform a function for.the program. that the
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`[ELEC] The voltage obtained from
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`servisor interrupt
`(comput sci} An interrup-
`a powersource for operation of a circuit or device.
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` lucting superposition theorem See principle of super;
`
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`tion.
`(.,sti-par-pe'zish-an“thir-om }
`fe caused by the program being executed
`(so'pli vol-dj}
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`ch issues an instruction to the master control=suppressedcarrier [commun] Acarrierinamod-
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`[ELECTR] Regeneratio
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`ulated signal that is suppressed at the trarismit-
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`which the oscillation is broken up or quen
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`rvisormode {computsci|Amethodofcom-_ter; the chrominance subcarrierin an analog color
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`at a frequency slightly above the upper aud}
`er operation in which the computer can
`television transmitteris an example.
`{ sa'prest
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`limit of the human ear by a separate O8¢i
`scope.
`eB
`cute all its own instructions, including the
`‘kar-€-or }
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`ilégéd instruction not normallyallowed to
`suppresséd-carrier
`modulation {ComMUN]
`circuit connected between the grid and
`
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`of the amplifier tube, to prevent regene;
`ie
`programmer, in contrast to problem mode,
`ny, five
`Modulation resulting from eliminationor partial
`
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`from exceeding ‘the maximum useful am,
`jporvizor mod}
`suppression of the carrier component frory an
`ogether
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`rvisory computer
`(COMPUT sci} A computer
`—. amplitude modulated wave.
`{ se’prest ‘kar-@or
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`{|si-por-ri,jen-o'ra-shon}
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`imaj-a'la-shon }
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`ch accepts test results from satellite computers,
`obertz. superscalar architecture.(COMPUT sci} A'd
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`smits new programsto the satellite computers,|suppressed-carrier transmission {comMUN]
`that enables a central processing unit to:
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`Transmission in which.the carrier component of
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`'sti-por
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`{ {sil-porviz-a-1ré kem'pytid-ar}
`the modulated: wave is eliminated or partially
`simultaneously, allowingit to execute sever,
`rvisory control and data acquisition ENG]
`suppressed, leaving only the side bands to be
`
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`eiverin transmitted.\.{ so'prest'kar--or tranz'mish-on }structions in each clock cycle. _{ |sii-paris! ersion of telemetry commonly used in wide-
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`[eLectR) Elimination of any component
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`propagation.of radio waves under conditio!
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`tor motion pattems to be remetnbered and’
`quency
`suppressor
`{ELEC} 1. In general, a device used
`
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`eB
`superstandard refraction in the atmosphere
`eated fater.
`corres-
`{ {sti-poriviz-o-ré ken'trdld mo
`to redtite or eliminate noise”or other ‘sigrials
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`is, refraction by an atmosphere or sectit
`-yo'la-shon }
`meters.
`that interferewith’ the operation of a‘communi-
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`A
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`known tvisory program=(comput. sci] A programiprap-o'ga-shon} ‘radio reception. {ELECTR} See suppressor grid.
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`[ENG aAcous] A loudspeake
`jsi-por
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`t organizes and regulates the flow of work
`{ so'pres-or}
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`a computer system,
`.for example,
`it may
`suppressor grid.
`{ELEcTR] A grid placed between
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`quencies, extending into the ultrasonic: r
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`fer.
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`3
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`ean a tweeter, and a woofer.
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`{
`(compuT sci] A program or
`used between thescreengrid and theanade. Also
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`known as suppressor.
`-{so'pres-ar ,grid }
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`jerthan—supertwisted nematic liquid-crystatdi o ES eral (of all) other routines and programs; it suppressorpulse [ELECTR] Pulse usedto disable i
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`{ELEcTR] A displayin which nematicliquid-<
`Usuallyformspart of(oris) the operating system.
`an ionized flow field or beacon transponder
`e- more
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`molecules are twisted more than 90°, an
`ee (SU-poriviz-o-ré ri'tén }
`during intervals when interference would be
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`picture elements respond to the averagé
`rvisory signal
`mbling
`[ELec| A signalwhich’ indi-
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`[ so'pres-or pols }
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`, to the ,the‘operating conditionof acitcuit'or a—surface-acoustic-wave devicemean-square) voltage applied by trans ee |ELECTR] Any de-
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`able of
`ination-ofcircuitsin a switching apparatus
`vice, such as a filter, resonator, or oscillator,
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`kno
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`other electrical equipment to an attendant.
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`which employs Surface’ acoustic waves with
`ee
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`the liquid. Abbreviated STN LCD.Also kn
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`liquid-crystal display (PM 7
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`frequericies in the range 10’~-10° hertz,traveling
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`Visory system.
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`[ELEC] A system of.control,
`“on' the optically polished surface of a piezo-
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`cating, and telemetry deviceswhich operates
`|sii-por,twis-ted natmadik lik-wad
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`{ELecrR} In a modulation system, the
`threshold
`that is not equipped to
`i
`smallest value of carrier-to-noise ratio at the
`any-localfacilities otherthanthen
`input tothe demodulator for all-values above
`{ 'thrii ri,péd-or}
`ese
`which a small percentage change in the input
`throw-away device
`[ELECTR] An
`I
`catrier-to-noise ratio produces a substantially
`ponent that is not serviced and is
`equalor smaller percentage change in the output
`replaced upon failure.
`(thro a
`signal-to-noise-ratio,
`[ENG] The leastvalue ofa
`thump=[ENGACcouS} Low-frequeniy
`current, voltage, or other quantity that produces
`turbance ina. system or transduce,
`the minimumdetectable response in an instru-
`audibly by the vocal
`imitation
`ment or system.
`{ ‘thresh,hold }
`{thamp }
`threshold element
`{comput sci] A. logic circuit
`thunk
`[comput sci] An additiong
`which has one output and several weighted
`created. by the compiler to tepreg
`inputs, and whose outputis energized if and only
`uation of the argumentof an expr
`if the sum of the weights of the energized inputs
`call-by-name procedure.
`{ thonk
`exceeds a prescribed threshold value.
`{ ‘thresh
`thyratron©[ELECTR} A hot-cathode
`shld ,el-a-mant }
`which one or more control elects
`threshold frequency
`{ELECTR} The frequency of
`but do not limit the anode curren;
`incident radiant energy below which there is
`certain operating conditions. Also'k
`no photoemissive effect.
`{ ‘thresh,hold ,fré-
`cathodegas-filled tube.
`{ 'thi-raitr
`kwan-sé }
`thyratron gate
`[ELECTR] In comput
`thresholding|(COMPUTSC!} Inmachinevision, the
`gate consisting of a multielement:g:
`comparison ofan element's brightness or other
`in which conductionis initiated byt
`characteristic with a set value or threshold.
`application of two or moresignals.
`(‘thresh hold-in }
`may continue. after one or more of:thi
`[ELECTROMAG}’A received radio
`threshold signal
`signals are removed.
`_{ 'thi-ra,tran
`signal(or radar-echo) whose power is just above
`thyratron: inverter=[ELEcTR| An inve
`
`the. noise level of the receiver. Also known
`that uses thyratrons to convert
`-dij
`as minimum detectable signal.
`{ ‘thresh,hdld
`power to alternating-current power
`signal }
`,tran in,vord-or}
`Hf
`(ELEcTR} A’ voltage-sensitive
`threshold switch
`thyrector
`{ELECTR} Silicon diode that
`alternating-current switch made from a semicon:
`insulator up to its rated voltage, an
`ductor material deposited on a metal substrate;
`ductor above rated voltage; used foral
`when the alternating-current voltage acting on
`current surge voltage protection.
`{thy
`the switch is increased above the threshold
`thyristor
`[ELEcTR} A transistor havi
`value, the numberof free carriers present in the
`tronlike characteristic; as collector:
`- semiconductor material increases suddenly, and
`increased to acritical value, the alpha:
`the switch changes from a high resistance of
`rises above unity to give high-spee
`about 10 megohms. to a low resistance of less
`action. .
`{ thi'ris-tor }
`than 1 ohm; in other versions of this switch, the
`tick
`[commun] A pulse broadcast at
`threshold voltageis controlled by heat, pressure,
`intervals
`by. standard frequency--.ai
`light, or moisture.
`{ ‘thresh hald ,swich }
`broadcasting stations to indicate thee
`threshold value
`{compuT sci] A point beyond
`{COMPUT sel} A time interval equalte \
`which there is a change in the mannera program
`cused primarily in discussing compu
`executes: in particular, an error rate above which
`tions,
`{tik}
`:
`the operating system shuts down the computer
`tickler coil
`[ELecTR] Small coil conne
`- system on the assumptionthat a hardwarefailure
`ries with the plate circuit of an electt
`has occurred.
`{coNtT.sys}The minimum input
`and inductively coupled to a grid-circul
`that produces a corrective action in an automatic
`establish feedback or regeneration in
`control system,
`_{ ‘thresh,héld:,val-yi}
`circuit; used chiefly in regenerative:
`threshold voltage
`{ELECTR| 1. In general, the vol-
`circuits.
`{“tik-ler ,kOil }
`:
`tage at which a particular characteristic of an
`tie.
`{ELEC} 4. Electrical connection orstrap
`electronic device first appears..
`2. The voltage at
`tie wire.
`{tT}
`which conduction of current beginsina pr junction.
`tie cable
`[ELEC] 1. Cable between two distr
`3, The voltage at which channel-formation occurs in
`framesor distributing points.
`2. Cable be
`a metal oxide semiconductorfield-effect transistor.
`private branch exchanges.
`3. Cable betwe
`4. The voltage at which a solid-state lamp begins to
`vate branch exchange switchboard and mair
`emit light,
`{‘threshjhdld voltij }
`4. Cableconnectingtwoothercables.
`{'tl)
`throttling
`(CONT sys} Control by means of in-
`tie line©{coMMUN] 1. A leased commun
`termediate steps between full on and full off.
`channelorcircuit.
`2.
`See datalink.
`:
`{ 'thréd-ol-in }
`tie point.
`{eLec} Insulated terminalto wh)
`throughput
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`GERTIPS
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`05917 3011427781 or
`Deve from the world-renownedMcGraw-HillDictionary of Scientific
`and Technical Terms, Sixth Edition, this vital reference offers a wealth
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`With definitions that are written in clear, simple language understandable
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`Engineering:
`© Features over 18,000 entries that fully define the language of
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`@ Includes hundreds of synonyms, acronyms, and abbreviations
`@ Provides pronunciationsforall terms
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`e Is based on the McGraw-Hill Dictionary of Scientific and
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`Carefully reviewed forclarity, completeness, and accuracy, «the,.MdcGrawe
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`| 009N7 8007 18442107
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`The McGraw-Hill companies
`
`ISBN O-07-144210-3
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`Visit McGraw-Hill Education at www.books,
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`9
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