Telecommunications

1964
0

Telecommunication is the transmission of messages, over significant distances, for the purpose of communication. In earlier times, telecommunications involved the use of visual signals, such as smoke, semaphore telegraphs, signal flags, and optical heliographs, or audio messages via coded drumbeats, lung-blown horns, or sent by loud whistles, for example.

by neeha



26-Jul-10, 11:10 am

Please leave a comment on Telecommunications

user

Ramesh Pokhriya..

8-Apr-14, 3:38 pm
25 Views

spain world cup..

13-Jul-10, 11:11 am
186 Views

Saul Alinsky

18-Jun-10, 8:06 am
385 Views

Pogs

18-Jun-10, 5:59 am
667 Views

Gemma Bissix

20-Aug-13, 9:35 am
104 Views

BMW 1 Series Ca..

10-Dec-09, 12:00 am
140 Views

Music of Kingdo..

31-Jul-10, 6:34 pm
2397 Views

A Crack in Time

18-Jun-10, 10:34 am
204 Views

John Ashcroft

26-Jul-10, 1:56 pm
258 Views

Chandrayaan 1

31-Aug-10, 11:57 am
8443 Views
Top