How Networks Work, 4th Edition

Overview

Take an exciting visual journey down the highways and byways of networking and communications. Frank J. Derfler, Jr. and Les Freed, two of the most respected names in PC networking, have teamed up with top illustrators to mastermind these easy-to-follow, technically rich presentations of such topics as:
  • How network operating system softtware and a logical topology form the heart of the local area netowork
  • ...
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Indianapolis, IN 1998 Trade paperback 4th ed. Annotated. New. Trade paperback (US). Glued binding. 212 p. Contains: Illustrations. How Networks Work. *****PLEASE NOTE: This item ... is shipping from an authorized seller in Europe. In the event that a return is necessary, you will be able to return your item within the US. To learn more about our European sellers and policies see the BookQuest FAQ section***** Read more Show Less

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Overview

Take an exciting visual journey down the highways and byways of networking and communications. Frank J. Derfler, Jr. and Les Freed, two of the most respected names in PC networking, have teamed up with top illustrators to mastermind these easy-to-follow, technically rich presentations of such topics as:
  • How network operating system softtware and a logical topology form the heart of the local area netowork
  • How ISDN lines expedite the transmission of data
  • How one LAN can connectt to another and allow communication and data sharing over a wider area
  • How the different types of network cable can affect performance
  • How ATM switches route cells across a network
  • How the Internet carries messages, images, and programs around the world
  • How secure enterprise networking protects the exchange of data
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Product Details

  • ISBN-13: 9780789715951
  • Publisher: PTG Software
  • Publication date: 4/28/1998
  • Series: Que - Consumer - Other
  • Edition description: Older Edition
  • Edition number: 4
  • Pages: 208
  • Product dimensions: 8.60 (w) x 10.05 (h) x 0.57 (d)

Meet the Author


Frank J. Derfler, Jr. is a senior networking editor at PC Magazine and a highly respected lecturer.

Les Freed is a co-founder and former CEO of CrossTalk Communications.

Together, Derfler and Freed have authored PC Magazine Guide to Using Netware, PC Magazine Guide to Windows for Workgroups, and other popular books on connectivity topics. Derfler is also the author of Que's Using Networks.

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Read an Excerpt


Chapter 19: Enterprise Network Systems

Computer networks have become the assembly line, warehouse, and delivery system for many organizations, so

Network management programs run in servers, in wiring hubs, and even on network interface

Manufacturers of network equipment have adopted several sets of standards for the operation of

A wiring hub is a very effective location for a management agent. The hub sits at the center of the

Management console programs use graphical maps and representations of the network. Their

If the data coming in from the agents exceeds certain criteria, management console programs can

A network management system adds to the cost of a network and isn't necessary in every

A network management system uses programs called agents, which run in special procesors installed in a variety of networked devices. These programs gather data in a format known as a management information base (MIB) and transfer it to a management console program running in a computer with a highly graphical display. The management console program creates network maps, bar charts, and other informative displays. The console software can automatically order some actions -- for example, disconnecting a disruptive computer from the network and notifying a human operator of emergency conditions.

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Table of Contents

Introduction
Pt. I Communicating by Wire 1
Ch. 1 The Telegraph 4
Ch. 2 The Telephone 10
Ch. 3 Printing Telegraphs 14
Pt. II Mixing Computers and Telephones 20
Ch. 4 The Early Networks 24
Ch. 5 From Keypunches to Terminals to the Carterfone 28
Ch. 6 Alphabet Soup: Morse, Baudot, ASCII, and EBCDIC 36
Ch. 7 The Bell 103 Modem 40
Ch. 8 Dialing for Data 44
Ch. 9 The RS-232C Serial Interface 48
Ch. 10 The Personal Computer as a Terminal 52
Ch. 11 Smart Modems 58
Ch. 12 Computer Telephony Integration 68
Pt. III Local Area Networks (LANs) 74
Ch. 13 A Network Model 80
Ch. 14 Network Operating Systems 84
Ch. 15 The Network Interface Card 90
Ch. 16 Network Cabling 96
Ch. 17 Server-Based LANs 118
Ch. 18 Peer-to-Peer Networks 124
Ch. 19 Enterprise Network Systems 128
Ch. 20 Remote LAN Access 134
Ch. 21 Network Security 138
Pt. IV Links Between LANs 144
Ch. 22 Repeaters, Bridges, Routers, and Switches 148
Ch. 23 Metropolitan Area Networks (MANs) 152
Ch. 24 Circuit-Switched Digital Services 156
Ch. 25 Packet-Switching Networks 162
Pt. V The Internet 170
Ch. 26 Internet Connections 174
Index 202
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