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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 accused of fraud and the charge was then dropped, but they do not really seem to have proceeded with production. In 1917 the Finnish inv ... [...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 Europe, off the north-western coast of the European mainland, continental mainland. It comprises England, Scotland, Wales and Northern Ireland. The United Kingdom includes the island of Great Britain, the north-eastern part of the island of Ireland, and many List of islands of the United Kingdom, smaller islands within the British Isles. Northern Ireland shares Republic of Ireland–United Kingdom border, a land border with the Republic of Ireland; otherwise, the United Kingdom is surrounded by the Atlantic Ocean, the North Sea, the English Channel, the Celtic Sea and the Irish Sea. The total area of the United Kingdom is , with an estimated 2020 population of more than 67 million people. The United Kingdom has evolved from a series of annexations, unions and separations of constituent countries over several hundred years. The Treaty of Union between ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ilya Ehrenburg
Ilya Grigoryevich Ehrenburg (russian: link=no, Илья́ Григо́рьевич Эренбу́рг, ; – August 31, 1967) was a Soviet writer, revolutionary, journalist and historian. Ehrenburg was among the most prolific and notable authors of the Soviet Union; he published around one hundred titles. He became known first and foremost as a novelist and a journalist – in particular, as a reporter in three wars (First World War, Spanish Civil War and the Second World War). His incendiary articles calling for violence against Germans during the Great Patriotic War won him a huge following among front-line Soviet soldiers, but also caused much controversy due to their extreme anti-German sentiment. The novel '' The Thaw'' gave its name to an entire era of Soviet politics, namely, the liberalization after the death of Joseph Stalin. Ehrenburg's travel writing also had great resonance, as did to an arguably greater extent his memoir ''People, Years, Life'', which may be his b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London
London is the capital and largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary down to the North Sea, and has been a major settlement for two millennia. The City of London, its ancient core and financial centre, was founded by the Romans as '' Londinium'' and retains its medieval boundaries.See also: Independent city § National capitals The City of Westminster, to the west of the City of London, has for centuries hosted the national government and parliament. Since the 19th century, the name "London" has also referred to the metropolis around this core, historically split between the counties of Middlesex, Essex, Surrey, Kent, and Hertfordshire, which largely comprises Greater London, governed by the Greater London Authority.The Greater London Authority consists of the Mayor of London and the London Assembly. The London Mayor is distinguished fr ... [...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 fr ... [...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 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 used at least into the 1980 ... [...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 phones, 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: *Orlowski/Orlovsky, a Slavic surname *Oryol Oblast Oryol Oblast (russian: Орло́вская о́бласть, ''Orlovskaya oblast''), also known as Orlovshchina (russian: Орловщина) is a federal subject of Russia (an oblast). Its administrative center is the city of Oryol. Population ... (''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 * W ... [...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 MSTU named after N. Bauman. 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). His device consisted of a stationary module and a portable handset. LK- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cellular Network
A cellular network or mobile network is a communication network where the link to and from end nodes is wireless. The network is distributed over land areas called "cells", each served by at least one fixed-location transceiver (typically three cell sites or base transceiver stations). These base stations provide the cell with the network coverage which can be used for transmission of voice, data, and other types of content. 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 portable transceivers (e.g., mobile phones, tablets and laptops equipped with mobile broadband modems, pagers, etc.) to communicate with each other and with fixed transceivers and telephones anywhere in the network, via base stations, even if some of the transceivers are moving through more than ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Telephone & Telegraph
AT&T Corporation, originally the American Telephone and Telegraph Company, is the subsidiary of AT&T Inc. that provides 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 telephone 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 purchased by Baby Bell and former subsidiary SBC Communications for more than $16 billion ($ in present-day terms). SBC then changed its name to AT&T Inc. Today, AT&T Corporation continues to exist as the long distance subsidiary of AT&T Inc., and its name occasionally shows up in AT&T press releases. Buildings with AT&T logo * AT&T Huro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cellular Network
A cellular network or mobile network is a communication network where the link to and from end nodes is wireless. The network is distributed over land areas called "cells", each served by at least one fixed-location transceiver (typically three cell sites or base transceiver stations). These base stations provide the cell with the network coverage which can be used for transmission of voice, data, and other types of content. 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 portable transceivers (e.g., mobile phones, tablets and laptops equipped with mobile broadband modems, pagers, etc.) to communicate with each other and with fixed transceivers and telephones anywhere in the network, via base stations, even if some of the transceivers are moving through more than ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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