Video: ❶ How Phones Have Changed
2023 Author: Madeline Holiday | [email protected]. Last modified: 2023-05-24 11:49
The telephone was invented in 1932 by the American scientist Alexander Bell. At first, the devices were large, expensive and unwieldy, "the toy of the rich." Today almost everyone has a phone, and it can fit in your pocket. How have these communication devices changed? Location: Location: 1
The evolution of telephones was caused by the struggle between companies and technological approaches, views on business. The initiative passed (along with financial success) to the company that was in the trend, better than others at solving the problem of connecting ordinary users.
The American firm AT&T became the first telephone company in the world. She bought the patent from Bell and became a kind of monopolist. She managed to connect the largest cities of the United States with a wire link: New York, Los Angeles, Philadelphia and Boston. Machines the size of a kitchen stove today and hundreds of telephone operators manually switching wires are the milestones of that time.
Phones kept getting smaller and smaller. But the real revolution was the telephone-fax proposed by the printer manufacturer Xerox. Thousands of entrepreneurs were able to exchange documents in the blink of an eye - a breakthrough in the history of the telephone industry.
Yet the main disadvantage of phones was their attachment to wires. Science made it possible to use electromagnetic waves as a means of transmitting information. AT&T has returned to the market of major communications players, revealing to the world cellular communications, so named because of the principle of cells (information is transmitted by radio waves from one hexagonal section to another, in the center of each cell is a radio antenna tower). Cell phones then weighed ten kilograms and were used exclusively in cars.
Siemens and Nokia solved the size problem in the early 1990s. Cell phones could now be put in a pocket. And English students used a protocol error to exchange information for free. This is how SMS messages appeared.
Apple has created the first touchscreen device that contains a phone, laptop and music player. IPhones have gained hundreds of thousands of fans around the world.
The history of telephones does not end, and the telecommunications market is one of the most dynamic. Cisco creates business solutions, Microsoft uses Skype's VO-IP service, and Google uses millions of devices on the free Android operating system.