How Networks Work, 4th Edition

How Networks Work, 4th Edition

Hardcover(Older Edition)


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How Networks Work, 4th Edition by Frank J. Derfler

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

Product Details

ISBN-13: 9780789715951
Publisher: PTG Software
Publication date: 04/28/1998
Series: Que - Consumer - Other
Edition description: Older Edition
Pages: 208
Product dimensions: 8.60(w) x 10.05(h) x 0.57(d)

About 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.

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.

Table of Contents

How Networks Work, 4th Edition - Table of Contents

How Networks Work, 4th Edition

  • Introduction

Part I: Communicating by Wire

  • Chapter 1 - The Telegraph
  • Chapter 2 - The Telephone
  • Chapter 3 - Printing Telegraphs

Part II: Mixing Computers and Telephones

  • Chapter 4 - The Early Networks
  • Chapter 5 - From Keypunches to Terminals to the Carterfone
  • Chapter 6 - Alphabet Soup: Morse, Baudot, ASCII, and EBCDIC
  • Chapter 7 - The Bell 103 Modem
  • Chapter 8 - Dialing for Data
  • Chapter 9 - The RS-232C Serial Interface
  • Chapter 10 - The Personal Computer as a Terminal
  • Chapter 11 - Smart Modems
  • Chapter 12 - Computer Telephony Integration

Part III: Local Area Networks (LANs)

  • Chapter 13 - A Network Model
  • Chapter 14 - Network Operating Systems
  • Chapter 15 - The Network Interface Card
  • Chapter 16 - Network Cabling
  • Chapter 17 - Server-Based LANs
  • Chapter 18 - Peer-to-Peer Networks
  • Chapter 19 - Enterprise Network Systems
  • Chapter 20 - Remote LAN Access
  • Chapter 21 - Network Security

Part IV: Links Between LANs

  • Chapter 22 - Repeaters, Bridges, Routers, and Switches
  • Chapter 23 - Metropolitan Area Networks (MANs)
  • Chapter 24 - Circuit-Switched Digital Services
  • Chapter 25 - Packet-Switching Networks

Part V: The Internet

  • Chapter 26 - Internet Connections
  • Index

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