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History Of Mobile Phones
The history of mobile phones covers mobile communication devices that connect wirelessly to the public switched telephone network. While the transmission of speech by signal has a long history, the first devices that were wireless, mobile, and also capable of connecting to the standard telephone network are much more recent. The first such devices were barely portable compared to today's compact hand-held devices, and their use was clumsy. Drastic changes have taken place in both the networking of wireless communication and the prevalence of its use, with smartphones becoming common globally and a growing proportion of Internet access now done via mobile broadband. Foundations Predecessors In 1908, Professor Albert Jahn and the Oakland Transcontinental Aerial Telephone and Power Company claimed to have developed a wireless telephone. They were later accused of fraud in a case which was ultimately dismissed; nevertheless, no phones ended up being manufactured. In 1917, the Finni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UK - 10 - Phones Old And New (2997615876)
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland. The UK includes the island of Great Britain, the north-eastern part of the island of Ireland, and most of the smaller islands within the British Isles, covering . Northern Ireland shares a land border with the Republic of Ireland; otherwise, the UK is surrounded by the Atlantic Ocean, the North Sea, the English Channel, the Celtic Sea and the Irish Sea. It maintains sovereignty over the British Overseas Territories, which are located across various oceans and seas globally. The UK had an estimated population of over 68.2 million people in 2023. The capital and largest city of both England and the UK is London. The cities of Edinburgh, Cardiff and Belfast are the national capitals of Scotland, Wales and Northern Ireland. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simplicissimus
:''Simplicissimus is also a name for the 1668 novel ''Der abenteuerliche Simplicissimus, Simplicius Simplicissimus'' and its protagonist.'' ''Simplicissimus'' () was a German language, German weekly satire, satirical magazine, founded by Albert Langen in April 1896 and headquartered in Munich. It was interrupted by a hiatus from 1944–1954, became a biweekly in 1964, and ceased publication in 1967. ''Simplicissimus'' took its name from the protagonist of Hans Jakob Christoffel von Grimmelshausen's 1668 novel ''Der Abenteuerliche Simplicissimus Teutsch'', which is regarded as the first adventure novel in the German language and the first German novel masterpiece. Combining brash and politically daring content with a bright, immediate, and surprisingly modern graphic style, ''Simplicissimus'' published the work of writers such as Thomas Mann and Rainer Maria Rilke. Its most reliable targets for caricature were stiff Prussian military figures and rigid German social and class disti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London
London is the Capital city, capital and List of urban areas in the United Kingdom, largest city of both England and the United Kingdom, with a population of in . London metropolitan area, Its wider metropolitan area is the largest in Western Europe, with a population of 14.9 million. London stands on the River Thames in southeast England, at the head of a tidal estuary down to the North Sea, and has been a major settlement for nearly 2,000 years. Its ancient core and financial centre, the City of London, was founded by the Roman Empire, Romans as Londinium and has retained its medieval boundaries. The City of Westminster, to the west of the City of London, has been the centuries-long host of Government of the United Kingdom, the national government and Parliament of the United Kingdom, parliament. London grew rapidly 19th-century London, in the 19th century, becoming the world's List of largest cities throughout history, largest city at the time. Since the 19th cen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telephony In Greater Manchester
The Cities of Manchester and Salford and some surrounding urban areas such as Stockport, Oldham and Bolton, (now forming parts of Greater Manchester), were the location of several advances in the development of telephony in the United Kingdom. A Manchester company installed the country's first regular telephone system in the city, wiring solutions which were adopted across Britain were initiated in Manchester and Stockport, the city was (arguably) the site of the UK's first telephone exchange and a service which was the forerunner of modern mobile phones was controlled from the city. UK’s first regular telephone service In November 1877, while telephony was in its infancy, just 18 months after Alexander Graham Bell had made the world's first phone call, Charles Moseley, the son of a Manchester rubber manufacturer (then making telegraph equipment), took an interest in Bell's work. Moseley employed an engineer called William Fereday Bottomley to obtain telephone instruments from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobile Telephone Service
The Mobile Telephone Service (MTS) was a pre- cellular VHF radio system that linked to the Public Switched Telephone Network (PSTN). MTS was the radiotelephone equivalent of land dial phone service. The Mobile Telephone Service was one of the earliest mobile telephone standards. It was operator assisted in both directions, meaning that if one were called from a land line the call would be routed to a mobile operator, who would route it to one's phone. Similarly, to make an outbound call one had to go through the mobile operator, who would ask for the mobile number and the number to be called, and would then place the call. This service originated with the Bell System, and was first used in St. Louis, Missouri, United States on June 17, 1946. The original equipment weighed , and there were initially only 3 channels for all the users in the metropolitan area, later more licenses were added bringing the total to 32 channels across 3 bands (see IMTS frequencies). This service was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Altai (mobile Telephone System)
The Altai mobile telephone system is the pre-cellular 0G radiotelephone service that was first introduced in the Soviet Union in 1963, and became available in the most large cities by 1965. It is a fully automated UHF/ VHF network that allows a mobile node to connect to a landline phone, and was originally conceived to serve government officials and emergency services, but has since spread into general use, and is still in use in some places, where its advantages outweigh those of conventional cellular networks. Work on the system of automatic duplex mobile communication started in 1958 in Voronezh Research Institute of Communications (VNIIS, now concern Sozvezdie). It was established subscriber stations and base stations for communicating with them. Technical information From the technical standpoint "Altai" was fairly ordinary UHF/VHF trunked radio, but it was equipped with the automatic switching circuits on both mobile and static nodes that allowed the mobile end of the link ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orlovskaya Pravda
Orlovsky or Orłowski (masculine), Orlovskaya or Orłowska (feminine), or Orlovskoye (neuter) may refer to: *Orlovsky (surname), a Slavic surname *Oryol Oblast (''Orlovskaya oblast''), a federal subject of Russia *Orlovsky District, several districts in Russia *Orlovsky Urban Settlement, a municipal formation which the urban-type settlement of Orlovsky and two rural localities in Aginsky District of Agin-Buryat Okrug of Zabaykalsky Krai are incorporated as *Orlovskoye Urban Settlement, a municipal formation which the Town of Orlov in Orlovsky District of Kirov Oblast is incorporated as *Orlovsky (inhabited locality) (''Orlovskaya'', ''Orlovskoye''), several inhabited localities in Russia *Róg Orłowski, a settlement in Poland *Wólka Orłowska, Warmian-Masurian Voivodeship Wólka Orłowska is a village in the administrative district of Gmina Nidzica, within Nidzica County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately north of Nidzica and south of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leonid Kupriyanovich
Leonid Ivanovich Kupriyanovich (, 14 July 1929 – 1 January 1996) was a Soviet engineer from Moscow who is credited for early development of a mobile phone device. Career In 1953, Kupriyanovich graduated from Bauman Moscow State Technical University. In 1955, Leonid Kupriyanovich published the description of a simple walkie-talkie amateur radio station for personal use in the Soviet amateur radio magazine "Radio," 1955, N2. It operated on two vacuum tubes. The walkie-talkie weighed about 1.2 kg and had 1.5 km operating distance. In 1957 Leonid Kupriyanovich presented a micro walkie-talkie radio version the size of a matchbox, 50g in weight and had 2 km operating distance. Also in 1957 he made an experimental model of a wearable automatic radio landline extender ("radiophone"), called LK-1 (not to be confused with the cancelled Soviet spacecraft of the same name or LK-1 ( ЛК-1) the first Soviet trolleybus A trolleybus (also known as trolley bus, troll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cellular Network
A cellular network or mobile network is a telecommunications network where the link to and from end nodes is wireless network, wireless and the network is distributed over land areas called ''cells'', each served by at least one fixed-location transceiver (such as a base station). These base stations provide the cell with the network coverage which can be used for transmission of voice, data, and other types of content via radio waves. Each cell's coverage area is determined by factors such as the power of the transceiver, the terrain, and the frequency band being used. A cell typically uses a different set of frequencies from neighboring cells, to avoid interference and provide guaranteed service quality within each cell. When joined together, these cells provide radio coverage over a wide geographic area. This enables numerous Mobile device, devices, including mobile phones, Tablet computer, tablets, laptops equipped with mobile broadband modems, and Wearable technology, wea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Telephone & Telegraph
AT&T Corporation, an abbreviation for its former name, the American Telephone and Telegraph Company, was an American telecommunications company that provided voice, video, data, and Internet telecommunications and professional services to businesses, consumers, and government agencies. During the Bell System's long history, AT&T was at times the world's largest telecommunications company, the world's largest cable television operator, and a regulated monopoly. At its peak in the 1950s and 1960s, it employed one million people and its revenue ranged between US$3 billion in 1950 ($ in present-day terms) and $12 billion in 1966 ($ in present-day terms). In 2005, AT&T was acquired by "Regional Bell Operating Company, Baby Bell" and former subsidiary SBC Communications for more than $16 billion ($ in present-day terms). SBC then changed its name to AT&T, AT&T Inc., with AT&T Corporation continuing to exist as a long-distance calling subsidiary until its dissolution o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Data Communication
Data communication, including data transmission and data reception, is the transfer of data, transmitted and received over a point-to-point or point-to-multipoint communication channel. Examples of such channels are copper wires, optical fibers, wireless communication using radio spectrum, storage media and computer buses. The data are represented as an electromagnetic signal, such as an electrical voltage, radiowave, microwave, or infrared signal. '' Analog transmission'' is a method of conveying voice, data, image, signal or video information using a continuous signal that varies in amplitude, phase, or some other property in proportion to that of a variable. The messages are either represented by a sequence of pulses by means of a line code ('' baseband transmission''), or by a limited set of continuously varying waveforms ('' passband transmission''), using a digital modulation method. The passband modulation and corresponding demodulation is carried out by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cellular Network
A cellular network or mobile network is a telecommunications network where the link to and from end nodes is wireless network, wireless and the network is distributed over land areas called ''cells'', each served by at least one fixed-location transceiver (such as a base station). These base stations provide the cell with the network coverage which can be used for transmission of voice, data, and other types of content via radio waves. Each cell's coverage area is determined by factors such as the power of the transceiver, the terrain, and the frequency band being used. A cell typically uses a different set of frequencies from neighboring cells, to avoid interference and provide guaranteed service quality within each cell. When joined together, these cells provide radio coverage over a wide geographic area. This enables numerous Mobile device, devices, including mobile phones, Tablet computer, tablets, laptops equipped with mobile broadband modems, and Wearable technology, wea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
