Get premium membership and access revision papers with marking schemes, video lessons and live classes.
  OR
Processing. Please wait.

 Form 2 History and Government online lessons on communication

Use and disadvantages of telegraph as a means of communication

 (4m 3s)
2261 Views     SHARE

Download as pdf file

Answer Text:
The Telegraph in communication.
- This is a device or process by which messages are passed over a distance, especially using radio signals or coded electrical signals.
- Telegraph messages are sent by a code in which numbers, letters and punctuation marks are represented by a combination of dashes and dots.
- The earliest code to be used was the Morse code which evolved into the international Morse code.
- A message sent by a telegraph was called a telegram.
- Radio invention made it possible for wireless telegraphy.
Disadvantage of telegraph.
(a) Communication through the telegraph could be rendered unreliable where accidents and poor weather could cut telegraph cables.
(b) It is suitable among the learned people.


|