| 1834
| wired telegraph for manually digitalized data (Gauss & Weber)
| 1839
| first demonstration of telegraph between Washington DC and Baltimore (Morse)
| 1858
| first transoceanic cable for telegraph
| 1867
| manually switched telephone for analog voice (Bell)
| 1897
| wireless telegram (Marconi) SMS service!
| 1900
| transoceanic wireless telegraph (Marconi)
| 1905
| Radio transmission (Fessenden)
| 1908
| idea of TV (Campbell-Swinton)
| 1915
| transcontinental telephone (Bell)
| 1920
| commercial radio broadcast (KDKA), and sampling in comm (Carson)
| 1926
| TV demonstration (Baird, England, and Jenkins)
| 1933
| FM modulation invented (Armstrong)
| 1941
| TV broadcast starts in the US
| 1946
| First computer in U. Pennsylvania
| 1950
| TDM, microwave radio, and voice band modems used in PSTN
| 1953
| Color TV and transoceanic telephone
| 1957
| first satellite (Sputnik I)
| 1962
| Transoceanic satellite TV (Telstar I)
| 1965
| videotape (Sony)
| 1968
| cable TV development
| 1968
| ARPANET started (first node at UCLA)
| 1971
| 9600 bps voice band modems (Codex)
| 1972
| Demonstration of cellular systems (Motorola)
| 1973
| Ethernet invented (Metcalfe), also international ARPANET
| 1980
| fiber optic systems applied to PSTN
| 1995
| Netscape, Internet as the first popular data communication networks
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hist.htm,
Wed Mar 16 00:34:18 CST 2011
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