
Cybernetics and Information Theory ◾ 191
9. Wikipedia, Cybernetics, http://en.wikipedia.org/wiki/Cybernetics.
10. Wikipedia, Norbert Wiener, http://en.wikipedia.org/wiki/Cybernetics.
11. R. M. Fano, Transmission of Information, MIT Press, Cambridge, MA, 1961.
12. D. A. Human, A Method for the Construction of Minimum-Redundancy
Codes, Proceedings of IRE, 40, 1098–1101, 1952.
13. Wikipedia, Morse Code, http://en.wikipedia.org/wiki/Morse_Code.
14. Wikipedia, Samuel Morse, http://en.wikipedia.org/wiki/Samuel_Morse.
TABLE 21.1 International Morse Code
A: ·
—
U: · ·
—
B:
—
· · · V: · · ·
—
C:
—
·
—
· W: ·
—
—
D:
—
· · X:
—
· ·
—
E: · Y:
—
·
—