History of Communication Technology

History of Communication Technology

By: Ramia JonesAndrea Stuckey

Johann Gutenberg of 1455• The Gutenberg press with its wooden and later

metal movable type printing brought down the price of printed materials and made such materials available for the masses. It remained the standard until the 20th century. The Gutenberg printing press developed from the technology of the screw-type wine presses of the Rhine Valley. It was there in 1440 that Johannes Gutenberg created his printing press, a hand press, in which ink was rolled over the raised surfaces of moveable hand-set block letters held within a wooden form and the form was then pressed against a sheet of paper.

Electric Telegraph and Telegraphy

In 1809, a crude telegraph was invented in Bavaria by Samuel Soemmering. He used 35 wires with gold electrodes in water and at the receiving end 2000 feet the message was read by the amount of gas caused by electrolysis. In 1828, the first telegraph in the USA. was invented by Harrison Dyar who sent electrical sparks through chemically treated paper tape to burn dots and dashes.In 1825, British inventor William

Sturgeon (1783-1850) revealed an invention that laid the foundations for a large scale evolution in electronic communications: the electromagnet. Sturgeon displayed the power of the electromagnet by lifting nine pounds with a seven-ounce piece of iron wrapped with wires through which the current of a single cell battery was sent. However, the true power of the electromagnet was its role in the creation of countless inventions to come.

The Telephone of 1876

• In the 1870s, two inventors Elisha Gray and Alexander Graham Bell both independently designed devices that could transmit speech electrically (the telephone). Both men rushed their respective designs to the patent office within hours of each other, Alexander Graham Bell patented his telephone first. Elisha Gray and Alexander Graham Bell entered into a famous legal battle over the invention of the telephone, which Bell won.By October 1874, Bell's research had progressed to the extent that he

could inform his future father-in-law, Boston attorney Gardiner Greene Hubbard, about the possibility of a multiple telegraph. Hubbard, who resented the absolute control then exerted by the Western Union Telegraph Company, instantly saw the potential for breaking such a monopoly and gave Bell the financial backing he needed. Bell proceeded with his work on the multiple telegraph, but he did not tell Hubbard that he and Thomas Watson, a young electrician whose services he had enlisted, were also exploring an idea that had occurred to him that summer - that of developing a device that would transmit speech electrically.

Gramophone

• Early attempts to design a consumer sound or music playing gadget began in 1877 when Thomas Edison invented his tin-foil phonograph. The word "phonograph" was Edison's trade name for his device, which played recorded sounds from round cylinders. The sound quality on the phonograph was bad and each recording lasted for one only play. Edison's phonograph was followed by Alexander Graham Bell's graphophone. The graphophone used wax cylinders which could be played many times, however, each cylinder had to be recorded separately making the mass reproduction of the same music or sounds impossible with the graphophone.

Kodak and Rolled Photographic Film

• George Eastman wanted to simplify photography and make it available to everyone, not just trained photographers. In 1883, Eastman announced the invention of photographic film in rolls. Kodak the company was born in 1888 when the first Kodak camera entered the market. Pre-loaded with enough film for 100 exposures, the Kodak camera could easily be carried and handheld during its operation. After the film was exposed (all the shots taken), the whole camera was returned to the Kodak company in Rochester, New York, where the film was developed, prints were made, new photographic film was inserted, and then the camera and prints were returned to the customer.