`Samsung v. Affinity
`IPR2014-01181
`Page 00001
`
`
`
`
`
`A Dictionary of
`
`Computing
`
`FOURTH EDITION
`
`Oxford New York
`
`OXFORD UNIVERSITY PRESS
`
`1 9 9 7
`
`Page 00002
`
`Page 00002
`
`
`
`Oxford University Press. Great Clarendon Street, Cbcford one nor
`Dxford Ne‘.-vYorl<
`.-iithens Auckland Bangkok Bogota Bombay Euenos Aires
`Calcutta CapeTown Dares Salaam Delhi Florence Hongiiong
`Istanbul Karachi Kuala Lurripar Madras Madrid Melbourne
`Mexico City Nairobi Paris Singapore Taipei Tokyo Toronto Warsaw
`and associated companies in
`Berlin Ibadan
`
`Oxford is a trade rnaric of Dxford University Press
`
`© Marlcetflotise Books Ltd. 1983, I935, 199:‘), 1996
`
`First published 1983
`Second edition 1935
`Third edition I990
`Fourth edition 1996
`
`First issued fiiiith corrections] as an Diiford University Press paperback 1997
`
`All rights reserved. No part of this publication may be reproduced.
`stored in a retrieval systern, ortransniitted. in anyfonn or by any means,
`without the prior permission in writing o_|"-Oxford University Press.
`Within thexUK. exceptions are allowed in respect of anyfair dealing for the
`purpose of research or private study, or criticisni or review. as permitted
`under the Copyright Designs and Patents Act, 1983, 01' 1'11 the case of
`reprographic reproduction in accordance with the terms of the licences
`issued by the Copyright Licensing Agency. Enquiries concerning
`reproduction outside these terms and in other countries should be
`sent to the Rights Department, Oxford University Press.
`at the address above
`
`This book is said subject to the condition that it shall not. by way
`of trade or otherwise. be lent. resold. hired out or otherwis-E circulated
`without the publisher's prior consent in any-forrn of binding or cover
`other than that in which it is published and without a similar condition
`including this condition being imposed on the subsequent purchaser
`
`British Library Cataloguing in Publication Data
`Data available
`
`Library of Congress Cataloging in Publication Data
`Data available
`ISBN 0-19-230046-9
`
`1 3 5 7 '9 10 B E 4 2
`
`Printed in Great B‘rii.'airt by
`Eidizlles Ltd
`
`Guildford and King's Lynn
`
`Page 00003
`
`Page 00003
`
`
`
`377
`
`POSITION-INDEPENDENT CODE
`
`ed, it immediately becomes the destination of
`the merge operations from the nonexhausted
`and previous-destination files When there is
`only one file left the process stops. The
`repeated merging is referred to as polyplme
`merging.
`
`PON Ablmv. /or passive optical network.
`
`pooling block An area of memory used to
`contain many short records that are to be
`transferred to or from a device for which the
`
`access time is long compared with the actual
`transfer time. See also buffer.
`
`pop See stack.
`
`POP /lrmnym for point of presence. An access
`point to the Internet, either the geographical
`location or, as a technical term, the equip-
`ment that supports the Internet access hard-
`ware and software.
`
`POP Acronym fiir post office protocol. The
`protocol
`that defines the communication
`between a utility that can accept electronic
`mail on behalf of a user, holding it until such
`time as the user wishes to recover the mes-
`
`sages. Sec message store.
`
`POP-2 A programming language developed by
`the University of Edinburgh (UK)
`for
`research in ‘artificial
`intelligence. POP-2
`provided the facility to manipulate the linked
`data structures characteristic of ‘LISP, but
`retained a more familiar procedural struc-
`ture, and was thus more accessible to pro-
`grammers raised in the Algol environment of
`the time. ‘POP-ll is a modern version of
`POP—2.
`
`POP-11 A programming language for artificial
`intelligence that claims to combine ‘LISP
`and ‘POP-2.
`
`display when the user changes the state of a
`‘button or makes a selection from a *menu
`
`bar. The menu item is selected by pointing to
`the desired entry before changing the button
`state back to the original state.
`
`pop-up progrfln A program that is perma-
`ncntly resident in memory and “pops up"
`onto the screen at the touch of a key. The
`concept has been largely superseded by the
`advent of *graphical user interfaces, where
`any program can be made to “pop up".
`
`port I. (I/O port) A connection point with
`associated control circuitry that allows I/O
`devices to be connected to the internal bus of
`
`a microprocessor. See also parallel port, serial
`port, communication port.
`2. A point through which data can enter or
`leave a ‘network, either on the network or
`the *D'I‘E (computer) interface.
`3. To move software from one type of com-
`puter system to another, making any neces-
`sary changes en route. In a simple case little
`more than recompilation may be required,
`while in extreme cases the software might
`have to be entirely rewritten.
`
`portable 1. Another word for machine-
`independent.
`Z. A word applied to software that can readily
`be transferred to other machines, although
`not actually *machine-independent.
`3. A computer that can be simply carried
`from one place to another by one person.
`They cannot necessarily be used in transit.
`Examples include ‘laptop and ‘notebook
`computers.
`
`P03 Alzbrev. fin point of sale See point-of-sale
`system.
`
`P operation (down operation) 3:: sema-
`phore.
`
`posot Short _/or partially ordered set. 3:: par-
`tial ordering.
`
`POPI. Acronym fiir Principles of Programming
`Languages. Title of an annual conference
`organized by the *ACM at which the results
`of much research in programming languages
`are announced.
`
`POPLOG A programming environment com-
`bining *POP—ll and *Prolog.
`
`population See sampling.
`
`pop-up menu A *menu that appears on the
`
`P08 expression Short for product of sums
`expression.
`
`positional system 3:: number system.
`
`position-Independent code Program code
`that can be placed anywhere in memory, since
`all memory references are made relative to
`the ‘program counter. Position-independent
`code can be moved at any time, unlike ‘relo-
`catable code, which can be loaded anywhere
`
`Page 00004
`
`Page 00004