Telephone | History, Definition, Invention, Uses, & Facts | Britannica
2024年10月29日 · This article describes the functional components of the modern telephone and traces the historical development of the telephone instrument. In addition it describes the development of what is known as the public switched telephone network (PSTN).
History of the telephone - Wikipedia
The modern telephone is the result of the work of many people. [10] Alexander Graham Bell was, however, the first to patent the telephone, as an "apparatus for transmitting vocal or other sounds telegraphically". Bell has most often been credited as the inventor of the first practical telephone.
Telephone - Invention, Technology, History | Britannica
2024年10月29日 · Modern telephone instruments are largely electronic. Wire coils that performed multiple functions in older sets have been replaced by integrated circuits that are powered by the line voltage. Mechanical bell ringers have given way to electronic ringers.
How do telephones work? - Explain that Stuff
2023年7月29日 · An easy-to-understand introduction to how telephones and telephone exchanges work, with photos showing what's inside a typical phone.
How Telephones Work - HowStuffWorks
2023年7月18日 · Telephones are one of the most important and useful modern inventions. Learn about telephone operation, creating a telephone network and tones and bandwidth.
Telephone - Wikipedia
A telephone, colloquially referred to as a phone, is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be easily heard directly.
How Did the Telephone Change the World: A Look at Its
2022年2月8日 · The telephone exchange changed the world by allowing people to talk directly to each other over long distances. Before the invention of the telephone network, communication between two people required a third party to transmit a message.
The History of the Telephone and How It Was Invented
2024年9月20日 · By the 1980s, telephone books, whether issued by the Bell System or private publishers, were in nearly every home and business. But with the advent of the Internet and of cell phones, telephone books have been rendered largely obsolete, relegated to the history of …
History of the telephone in the United States - Wikipedia
The telephone played a major communications role in American history from the 1876 publication of its first patent by Alexander Graham Bell onward.
The Development of the Telephone | American Experience | PBS
Joseph Henry lays the groundwork for the telephone, Alexander Graham Bell invents the telephone and the telephone goes national.
Alexander Graham Bell: Telephone & Inventions | HISTORY
2009年11月9日 · Alexander Graham Bell is known for his many inventions, especially the telephone and a metal detector. He later created the Bell Telephone Company, now AT&T.
Telephone - Invention, Alexander Graham Bell, Communication
2024年10月29日 · In the 1870s two American inventors, Elisha Gray and Alexander Graham Bell, each independently, designed devices that could transmit speech electrically. Gray’s first device made use of a harmonic telegraph, the transmitter and receiver of which consisted of a set of metallic reeds tuned to different frequencies.
How Phones Work: The Basic Science Behind Telephones
2018年7月21日 · A basic phone consists of a microphone (which you talk into), an apparatus to change your voice into electric signals, a means of sending the signals to their destination (say, your friend’s ear), and (on your friend’s end) a receiver which then changes the electric signals back into your voice (or an approximation thereof).
Modern Telephones - Best Buy
Whether you're looking for a traditional phone with modern features or a completely wireless phone without any cords, these are some of the best modern telephones available today.
Telephone - New World Encyclopedia
The modern telephone is the result of the work of many, all worthy of recognition of their contribution to the field. Recently, however, the British government announced that it now recognizes (primarily for educational purposes) Antonio Meucci (see below) as the 'first inventor' of the telephone.
Watch The Evolution of the Phone - WIRED
2017年1月11日 · The modern telephone is ubiquitous, but it wasn't always that way. We go through the last hundred years and take a look at how the telephone has evolved.
Alexander Graham Bell | Biography, Education, Telephone, …
2024年10月29日 · Alexander Graham Bell, Scottish-born American inventor, scientist, and teacher of the deaf whose foremost accomplishments were the invention of the telephone (1876) and refinement of the phonograph (1886). He also worked on use of light to transmit sound, development of a metal detector, and heavier-than-air flight.
Bell Telephone in the 1920s - ArtDeco.org
Kathryn E. Holliday explores New York City's generation of tall, telephone building architecture built throughout the city and across the country during the 1920s and how the style redefined the telephone company’s public image as progressive and modern.
JOHN F. NOONAN, TELEPHONE PIONEER | Passaic County …
On May 1, 1900 the telephone company moved from the Blue Front Building to a more modern telephone building at Paterson and Ellison streets, which was opened with the common battery switchboard service and in 1927 the building of 114 Paterson street was added to the system.
Bell System - Wikipedia
The Bell System was a system of telecommunication companies, led by the Bell Telephone Company and later by the American Telephone and Telegraph Company (AT&T), that dominated the telephone services industry in North America for over 100 years from its creation in 1877 until its antitrust breakup in 1983.
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