Publisher's Synopsis
Introduces ways people have communicated in code, from prehistoric trail markers to the binary code used in computers, including Morse code, semaphore, and secret codes.
Book (01 Jan 1994)
Not available for sale
Includes delivery to the United States
Out of stock
Introduces ways people have communicated in code, from prehistoric trail markers to the binary code used in computers, including Morse code, semaphore, and secret codes.
ISBN: | 9781568471570 |
Publisher: | Thomson Learning |
Imprint: | Thomson Learning |
Pub date: | 01 Jan 1994 |
DEWEY: | 652.8 |
DEWEY edition: | 20 |
Language: | English |
Number of pages: | 32 |
Weight: | 304g |
Height: | 258mm |
Width: | 201mm |
Spine width: | 10mm |