Beginning of Electronic Communications

Beginning of Electronic Communications

Rapid long-distance communication relies on the telegraphed until 1877.

The foundation of electronic communication begins with the introduction of the electromagnet. The British inventor William Sturgeon (1783-1850) displayed the power of the electromagnet. He uses seven-ounce piece of iron, wrapped with wires which was sent with a current from a single cell battery, and was able to lift nine pounds of object.

An American named Joseph Henry (1797-1878) was able to demonstrate Sturgeons device for long distance communication. It was done by sending an electronic current over a mile of wire to activate an electromagnet, this activity causes a bell to strike. This was the beginning of the use of the telegraph.

Joseph Henry

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The telegraph is a device which uses electricity to send messages. The telegraph was developed by Samuel F.B Morse. He is a professor at the New York University. Samuel Morse used a telegraphed key to encode messages. This was done by using a special code called the Morse Code.

This code was consisted of dot and dashes. The dot and dashes represents the letters of the alphabet. It was made by making as well as breaking the transmitter circuit. Then the  pulse of current deflects an electromagnet and move the marker. The marker will then produce written codes on a paper. It was being modified to emboss the paper with dashes and dots in the year that followed.

The telegraphed was further developed through sending by air and receiving by air. In this process, the electric signals are sent to the receiver’s end through the wires. The signals that will be going to received are converted to sound by a sounder.

Morse operators were trained to work. A will trained Mores operator could transmit 40 to 50 words per single minute.

Rapid long-distance communication relies on the telegraphed until 1877.

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cebuanaeyez, posted this comment on Oct 18th, 2009

Interesting article!

Jane Jane, posted this comment on Oct 19th, 2009

well done.

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