Definition: The word 'telegraph' is a technical term used in communications technology for transmitting signals over long distances using radio waves, such as radio signals from a radio station or telephone call to a telephone booth.
Definition:
- A telegraphic device is a device that converts analog signals into digital signals. These signals are often used by electronic mail, SMS (short message service), and other wireless communication systems.
- Telegraphy was first introduced in 1744, when the French inventor Pierre-Simon Laplace discovered how to transmit electrical currents through a medium such as paper. The technology of telegraphy is now widely used for sending messages across long distances.
- In communications, the word "telegraph" refers to any form of electronic communication that uses radio waves to transfer information from one location to another over large distances. Telegrams are analog signals converted into digital code using a telephone receiver or modem, which then sends these digital codes as text, images, or voice messages back to the sender.
- It is important to note that while telegraphs can be used for sending and receiving messages, they cannot transmit anything else such as audio or video information.
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