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`JOHNSON COUNTY Li Tah
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`GUEST TEK EXHIBIT 1020
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`GUEST TEK EXHIBIT 1020
`Guest Tek v. Nomadix, IPR2019-00253
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`McGRAW-HILL
`ELECTRONICS
`DICTIONARY _—
`
`
`
`SIXTH EDITION
`
`NEIL SCLATER
`JOHN MARKUS
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`reditions of
`or editor of
`wg, How To
`ess, Source-
`its Manual,
`iblished by
`
`_
`McGraw-Hill
`New York San Franciscs Washington, D.C. Auckland Bogota
`Caracas Lisbon London Madrid Mexico City Milan
`Montreal New Delhi SanJuan Singapore
`Sydney ‘Tokyo Toronto
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`JOHNSON COUNTY LIBRARY
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`J SHAWNEEMISSION,KANSAS__
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`Copyright © 1997, 1994, 1978, 1945 by McGraw-Hill, Inc. All rights reserved.
`Printed in the United States of America. Except as permitted under the
`United States Copyright Act of 1976, no part of this publication may be
`reproduced or distributed in any form or by any means, or stored in a data
`base or retrieval system, without the prior written permission of the pub-
`lisher. Copyright © 1966, 1960 under the title Electronics and Nucleonics
`Dictionary. All rights reserved.
`
`2345678906 pOocmpoc 90210987
`
`ISBN 0-07-057837-0
`
`The sponsoring editor for this book was Steve Chapman,the editing
`supervisor was M. R. Carey, and the production supervisor was Clare
`Stanley. it was set in Times Roman by North Market Street Graphics.
`
`Printed and bound by R. R. Donnelley & Sons Company.
`
`Information contained in this work has been obtained by McGraw-Hill, Inc. from
`sources believed to be reliable. However, neither McGraw-Hill norits authors
`guarantee the accuracy or completeness of any information published herein and
`neither McGraw-Hill norits authors shall be responsible for any errors, omissions,
`or damages arising outof use of this information, This work is published with the
`understanding that McGraw-Hill and its authors are supplying information but
`are not attempting to render engineering or other professional services..If such
`services are required, the assistance of an appropriate professional should be
`sought.
`
`
`
`
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`Library of Congress Cataloging-in-Publication Data
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`
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`
`
`:
`Sclater, Neil.
`McGraw-Hill electronics dictionary / Neil Sclater, John Markus. —
`6th ed.
`pcm.
`Markus’ name appearsfirst on the earlier edition.
`Includes tndex.
`ISBN 0-07-057837-0
`1. Hlectronics—Dictionaries.
`IL. Title,
`TK7804.M354
`621.38’03—de21
`
`I. Markus, John, 1911-
`
`1997
`
`97-16168
`CIP
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`arm
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`apparent power The power value obtained in an AC cir-
`arcthrough In multielectrode gas tubes, the loss of control
`that results from the flow of a principal electron stream in the
`cuit by multiplying the effective values of voltage and cur-
`
`
`normal direction during a scheduled nonconducting period,
`‘yent. The result is expressed in voltamperes and must be
`are welding A fusion welding process in which welding
`‘ qpultiplied by the power factor to secure the average or
`
`heat is obtained from an electric arc struck between an
`true power in watts,
`
`
`‘apparent precession The relative angular movement of
`electrode and the metal being welded or-between two sep-
`
`
`arate electrodes, as in atomic hydrogen welding.
`the spinning axis of a gyroscope in relation to a line on the
`area control radar A radar set or system for air traffic
`earth, resulting from the rotation of the earth.
`
`
`Applegate diagram A diagram thatillustrates the behav-
`control over a relatively large area, to provide a smooth
`
`jor of the electrons in a velocity-modulation tube such as a
`flow ofair traffic to the approach control radar.
`
`
`areal density On 2 computer memory disk, the density
`reflex klystron, The distances of electrons from the
`buncher in the drift space are plotted as vertical coordi-
`{bits per inch) multipHed by track density (tracks per
`
`
`nates against time on the horizontal axis. Close spacing of
`inch), or bits per square inch of disk surface,
`’
`these vertical lines indicates bunching ofelectrons.
`argon [A or Ar] The most abundant inert (rare) gas ele-
`
`
`mentthat has an atomic numberof 18 and an atomic weight
`‘Appleton layer F layer.
`: application-specific integrated circuit [ASIC] A class of
`of 39,948, It makes up 0.9% of the air by volume.It is used
`
`
`- dedicated semicustom ICs that includes gate arrays, stan-
`as a fill in ionized gas signs, in lasers capable of penetrating
`dard cells, and programmable logic devices (PLDs) for
`seawater, and as a fill with nitrogen in electric lightbulbs,
`
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`specific applications, in contrast with standard ICs that
`where it retards the evaporation of the lamp filament.
`
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`have more universal applications.
`argon glow lamp A lamp containing argon that glows with
`
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`APT 1. [Automatically Programmed Tools] A computer
`a pale blue-violet light. Typical powerratings are from % to
`
`
`2W.
`language developed primarily for programming numeri-
`cally controlled machine tools, It is written in convenient
`argonlaser A gas laser that contains ionized argon to pro-
`Englishlike computer
`language, using such practical
`duce strong radiation at 0.488 jum and infrared radiation.
`instructions as line, sphere, and tangent.
`2. Abbreviation
`axithmetic circuit A computer circuit that performs an
`for automatic picture transmission,
`arithmetic operation.
`APTsatellite A low earth-orbiting [E20]satellite with
`arithmetic-legic unit [ALU] A section of a microproces-
`automatic picture-taking capabilities,
`sor or microcontroller that performs mathematical opera-
`AQL Abbreviation for acceptable quality level.
`tions such as addition, subtraction, multiplication, division,
`A quadrant One of the two quadrants in which the A sig-
`and logic on numbers (usually binary) presented to its
`nal of an A-N radio range is heard.
`inputs, It provides an output that is an appropriate func-
`ARAM An acronym for an audio dynamic random-
`tion of its inputs.
`access memory. (It is also called an audia DRAM).
`are Hlectric arc.
`arcback ‘The flow of a principal electron stream in the
`reverse direction in a mercury-vapor
`rectifier
`tube
`because of formation of a cathode spot on an anode. This
`results in failure of the rectifying action. Also called back-
`fire. The action corresponds to reverse emission in elec-
`tron tubes.
`arccathode A cathade in which electron emissionis self-
`sustaining at a low voltage drop, approximately equal to
`the ionization potential of the gas.
`arc-discharge tube A discharge tube in which a high-
`current arc discharge passes through the gas between the
`electrodes, generally for the purpose of producing an
`latense flash of light.
`are drop The voltage drop between the anode and cath-
`ode of a gas rectifier tube dering conduction.
`are-drop loss The product of the instantaneous values of
`tube voltage drop and current averaged over a complete
`cycle of operation of a gas tube,
`Archie A network communications toolfor locating files
`on the Zmernet available on file transfer protocol [FTP]
`Serving computers,
`-
`arcing The production of an arc, as at the brushes of a
`Motoror the contacts of a switch.
`arc spectrum ‘The spectrum of light produced by vaporiz-
`lng an elementin an electric are.
`arc spraying Spraying with metal that has been melted by
`’
`an electric arc,
`
`arithmetic mean Mean.
`arithmetic operation A digital computer operation in’
`which numerical quantities are added, subtracted, multi-
`plied, divided, or compared.
`arithmetic shift. A computer operation in which a quantity
`is multiplied or divided by a power of the number base.
`Thus, binary 1011 represents decimal 11, and therefore
`two arithmetic shifts to the left is binary 101100, which
`represents decimal 44.
`ARL Abbreviation for acceptable reliability level.
`arm 1. An interconnectedset of links and powered joints
`that supperts and moves a mechanicai wrist, hand, or end-
`effector tool in-the performance of some task. It can be
`manually controlled, as in a telercheric, or under pro-
`
`ARITHMETIC
`AND LOGIC
`UNIT (ALU)
`
`UNIT {CPL}
`
`REGISTERS
`CONTROL AND
`TIMING
`CENTRAL PROCESSING
`
`Atithmetic-logic unit (ALU) is that part of a computer’s central
`processing unit (CPU) that performsall arithmetic calculations,
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