1. What is a Mobile Phone?
Mobile phones, mobile phones or mobile electronic devices that are used to make mobile phones in a wide geographic area served by the cells of many people who use mobile phones to do it. In contrast, wireless phones will be used in a range of one base station, private, such as your home or office.
Mobile phones can make and receive to and from the public telephone network, including mobile phones and other fixed around the world. Does this by connecting to the mobile network to mobile network operators.
In addition to telephone, mobile phone also supports a variety of advanced services such as messaging, MMS, E - mail, internet short-range wireless communications (infrared, Bluetooth), program. business, gaming and photography. Mobile phones are increasingly offering the ability to use computers generally referred to as smartphones.
The first mobile phone demonstrated by Dr. Martin Cooper of Motorola in 1973, using weight 2 kg. [1] In 1983 8000x DynaTAC was the first time will be available.commercialization in twenty years 1990-2010, global mobile data sources, up from 12.4 million, more than 4.6 billion surpassed the country's economy is developing and to the bottom of the economic pyramid.
2. History of Mobile Phone..
Radiophones has a long history and diverse back to Reginald Fessenden invention and shore-to-ship demonstration of radio telephony, through the Second World War with military use of radio telephony links and civil services in the 1950s. Call the first mobile phone from a car and took place in St. Louis, Missouri, United States of America June 17, 1946, using Bell System mobile phone service, but this system is not practical from what is today the mobile phone. Weight equipment, £ 80 (36 kg), and AT & T service, essentially the party line and wide, cost $ 30 per month (equivalent to $ 337.33 today), in addition to the $ 0.30 to $ 0.40 per local call, which is equivalent to $ 3.37 today to $ 4.5 . In 1956, launched the world's first car phone automatically part system, mobile system A (MTA), in Sweden. The MTA is composed of mobile vacuum tubes and carriers, and the weight of 40 kilograms. In 1962, called version more recent Mobile System B (short-term, was launched by the phone button is pressed, which used transistors in order to strengthen the capacity of the phone connected and improve operational reliability, which reduces the weight of the device to 10 kg. In 1971, The Release million, and open to different brands of equipment and access to commercial success.
The mobile phone is not early The Martin Cooper, a researcher at Motorola, Inc. and the executive to be the inventor of the first practical mobile phone for handheld use in a vehicle is, after a long race against Bell Labs for the first mobile phones. Using the modern, mobile phones if somewhat heavy, Cooper made the first contact on a mobile phone by hand on April 3, 1973 at his rival, Dr. Joel S. Engel of Bell Labs. And launched the first commercial cellular network automation (and 1G) in Japan NTT in 1979, initially in the Tokyo metropolitan area. Within five years, has been expanding the network of NTT to cover all of Japan's population, and became the first network 1G country. In 1981, followed by the simultaneous launch of a mobile system for the north (or. T) in the phone, Denmark, Finland, Norway and Sweden.. Um. T was the first mobile network service is roaming. It was the first 1G network was launched in the United States and Chicago-based Ameritech in 1983, using the mobile phone Motorola DynaTAC. Then followed by several countries in the period from the early to mid-1980s, including Mexico and the United Kingdom and Canada. Has launched a "modern" first network technology on digital 2G (second generation) cellular technology by Radiolinja (now part of Elisa Group) in 1991 in Finland on the GSM standard, which also saw the introduction of competition in the mobile sector when he challenged the Radiolinja Finland Current Communications (now part of TeliaSonera) who ran the network is. T-1G. In 2001, he was the first commercial launch of third generation 3G (third generation) again in Japan by NTT DoCoMo at the level of WCDMA. Implemented one of the newer technologies 3G high-speed Downlink Packet Access (HSDPA). Is the promotion of 3G (third generation) protocol for mobile telephony in the high-speed packet access (Hspa) family, also coined the 3.5G, 3G + or 3G Turbo, which allows networks based on Global System for Mobile Telecommunications (UMTS) to the top data transfer speeds and capacity.
The mobile phone is not early The Martin Cooper, a researcher at Motorola, Inc. and the executive to be the inventor of the first practical mobile phone for handheld use in a vehicle is, after a long race against Bell Labs for the first mobile phones. Using the modern, mobile phones if somewhat heavy, Cooper made the first contact on a mobile phone by hand on April 3, 1973 at his rival, Dr. Joel S. Engel of Bell Labs. And launched the first commercial cellular network automation (and 1G) in Japan NTT in 1979, initially in the Tokyo metropolitan area. Within five years, has been expanding the network of NTT to cover all of Japan's population, and became the first network 1G country. In 1981, followed by the simultaneous launch of a mobile system for the north (or. T) in the phone, Denmark, Finland, Norway and Sweden.. Um. T was the first mobile network service is roaming. It was the first 1G network was launched in the United States and Chicago-based Ameritech in 1983, using the mobile phone Motorola DynaTAC. Then followed by several countries in the period from the early to mid-1980s, including Mexico and the United Kingdom and Canada. Has launched a "modern" first network technology on digital 2G (second generation) cellular technology by Radiolinja (now part of Elisa Group) in 1991 in Finland on the GSM standard, which also saw the introduction of competition in the mobile sector when he challenged the Radiolinja Finland Current Communications (now part of TeliaSonera) who ran the network is. T-1G. In 2001, he was the first commercial launch of third generation 3G (third generation) again in Japan by NTT DoCoMo at the level of WCDMA. Implemented one of the newer technologies 3G high-speed Downlink Packet Access (HSDPA). Is the promotion of 3G (third generation) protocol for mobile telephony in the high-speed packet access (Hspa) family, also coined the 3.5G, 3G + or 3G Turbo, which allows networks based on Global System for Mobile Telecommunications (UMTS) to the top data transfer speeds and capacity.
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| Inventer of Mobile Phone |
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