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Microsoft is a registered trademark of Microsoft Corporation. Microsoft Windows is a trademark of Microsoft Corporation. For information regarding permission(s), write to: Rights and Permissions Department, Pearson Education, 1 Lake Street, Upper Saddle River, NJ 07458 UNIX is a registered trademark of The Open Group in the U.S. This publication is protected by Copyright and permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. Horton Editorial Assistant: Melinda Haggerty Director of Marketing: Margaret Whaples Marketing Manager: Christopher Kelly Associate Editor: ReeAnne Davies Senior Managing Editor: Scott Disanno Production Editor: Irwin Zucker Art Director: Kenny Beck Cover Art: © Sebastian Kaulitzki/Shutterstock Art Editor: Gregory Dulles Media Editor: David Alick Manufacturing Manager: Alan Fischer Manufacturing Buyer: Lisa McDowell © 2009, 2004, 2001, 1999, 1997 by Pearson Education, Inc. Library of Congress Cataloging-in Publication Data on File.Įditorial Director, Computer Science and Engineering: Marcia J. San Jose, CA 95138 and Department of Computer Sciences Purdue University West Lafayette, IN 47907 Computer Networks and Internets FIFTH EDITIONĭOUGLAS E.
