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Held, Gilbert, 1943-

Understanding data communications / Gilbert Held - 5th edition - Indianapolis, IN : Sams Pub., c1996. - xv, 504 p. : ill. ; 24 cm.

Content
1 An overview of data communication
About this book
About this chapter
What is data communication
etc.

2 Terminal devices
About this chapter
Teleprinters
Teleprinter communications
Teleprinters terminals
Teleprinter versus CRT Terminals
CTR Terminal
Parts of a terminal
etc.

3 Messages and terminal channels
About this chapter
What is information
Information as a quantity
Information content of symbols
What carries the message
etc.

4 Asynchronous modems and interfaces
About this chapter
Why data cant be transmitted directly
Solving the problem with modern
Analog modulation
etc.

5 Synchronous modems, digital transmitted and services units
About this chapter
Synchronous signaling and standards
A search for higher data rates.
Typical Synchronous Components
etc.

6 Multiplexing techniques
About this chapter
Multiplexing
Sharing a channel
Digital modulation
etc.

7 Fiber-optic satellite communication
About this chapter
Introduction and historical perspective
Fundamentals of fiber-optic systems
Snell's law
Fiber-optic subsystems and components
etc.

8 Protocols and error control
About this chapter
Protocols and interfaces
Elements of protocol
Teletypewriter and XMODEM protocols
Protocol selection
etc.

9 Personal computer communications software
About this chapter
Communication programs features
Operating systems and operating environmental support
Using ProcommPlus for words
etc.

10 Alternatives in local area networks
About this chapter
What is LAN
LAN versus other techniques
Logical link control- IEEE
etc.

11 Architectures and packets networks
About this chapter
Protocol layering
physical layer
Packet networks
Link levels
etc.

12 Internet
About this chapter
Evolution
Application services
Internet access providers
IP addressing
etc.

13 ISDN
About this chapter
Concept
ISDN architecture
Basic access
ISDN Implementation standards
etc.

14 Asynchronous transfer mode
About this chapter
Evolution
The rational and underlying technology
Architecture
etc.

15 Network design and management
About this chapter
Network design goals
Accuracy
Timelines
Transfer rate of Information Bits
etc.









Includes bibliographical references (p. :477- 478 and index.

ISBN: 0672309343

ISSN: 9780672309342

Subjects--Topical Terms:
Data transmission systems.
Computer networks.

Dewey Class. No.: 004.6 / UND