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The inventor was Bi Sheng .
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The history of the alphabet started in ancient Egypt.
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an Act of the United States Congress that extended the Espionage Act of 1917 to cover a broader range of offenses, notably speech
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Developed in the 1830s and 1840s by Samuel Morse (1791-1872) and other inventors, the telegraph revolutionized long-distance communication.
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Scottish emigrant Alexander Graham Bell was the first to be granted a United States patent for a device that produced clearly intelligible replication of the human voice.
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Cyrus West Field and the Atlantic Telegraph Company were behind the construction of the first transatlantic telegraph cable
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De Forest set up transmitter at foot of the Eiffel Tower and gave a demonstration .
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The first known use of the word "computer" was in 1613 in a book called The Yong Mans Gleanings by English writer Richard Braithwait
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During the 1930s, there were a small number of experimental (known as "Apex") stations attempting to broadcast high fidelity audio using wide-bandwidth AM on VHF frequencies. In 1937 W1XOJ was the first FM radio station, granted a construction permit by the Federal Communications Commission (FCC). On June 17, 1936, FM radio was demonstrated to the FCC for the first time
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Station owners began to allow rock music on these frequencies. “Free-form” or “underground” FM radio began to spread the word on
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Ray Tomlinson is generally credited as having sent the first email across a network,
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global computer neywork uses standrdized communican protocals
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In 2014, HBO had an adjusted operating income of US$1.79 billion, compared to the US$1.68 billion it accrued in 2013.
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It is delivering television programming using signals relayed from space radio stations
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At that time, two competing color mechanisms were being championed
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In the last 20 years, the use of mobile devices has grown rapidly across the world, but different countries and regions have had varying rates of adoption.
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The VIII Olympic Winter Games, was the first to be in tv
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a written character symbolizing the idea of a thing without indicating the sounds used to say it, e.g., numerals and Chinese characterized
