Messengers, Morse code, and modems
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Word Count
12,000 words, Guess
Page Count
48 pages
Identifiers
- Internet Archivemessengersmorsec00park
- ISBN-100739801384
- ISBN-139780739801383
- Library of Congress Control Number99040872
- OCLC Control Number42027432
and 1 more
- Open LibraryOL24929644M
Classifications
- DDC384
- LCCTK5102.4 .P35 2000
Description
Discusses the development of various means of communication, from the printed word through telegraph and telephone to radio, television, and computers, examining the technology that has made communicating easier.
Subjects
Series Statement
- Science @ work
- Science @ work (Austin, Tex.)
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