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Neptune
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The Cellphone Timeline
As of today, the analog cellphone is no more. Here's the complete timeline of its development, since Greece in 490BC to February 18, 2008, the day in which networks are no longer obligated to provide with analog cellphone coverage.
490 BC Pheidippides ran from Marathon to Athens to transmit the news of the victory over the Persians. Signal was really bad back then: he died on the spot after delivering the message, according to Plutarch. 1876 First successful telephone transmission. Graham Bell says "Mr. Watson, come here, I want to see you" and Watson understands each word clearly. A century later, people would be "What? Say that again? Watson? Watson?" over cellphone lines. 1895 Marconi puts Tesla wireless communications discoveries to practice, developes commercial radio. 1906 Reginald Aubrey Fessenden demonstrates first wireless radio telephone. 1908 First US Patent on a wireless phone awarded to Nathan B. Stubblefield. 1926 Radio telephony starts to be used in the First Class of the Hamburg-Berlin train line. 1939 World War II starts. Germans start using radio phones in tanks on a large scale. 1945 Germany surrenders. Hitler kills himself, he never used a Windows Mobile Phone, (or a Playstation 3 or a HD DVD player.) 1947 Bell Labs proposes hexagonal cells for mobile phones, with the three sided antenna we know today. It sucked, because it was all theoretical. 1954 Linus Larrabee (Humphrey Bogart) uses a real mobile phone from his car in Billy Wilder's Sabrina (played by Audrey Hepburn.) 1956 First fully automatic mobile phone (Mobiltelefonisystem A or MTA) system launched in Sweden by Ericsson. Each handset, pictured below, was 90 pounds (40 kg.) 1965 Ericsson's MTB is launched. This time, the headset is just 20 pounds (9 kg.) thanks to the use of transistors. 1970 Automatic "call handoff" system is invented, allowing mobile phones to move through several cell areas during a single conversation without loss of conversation. 1971 ARP, the first successful commercial cellphone network, is launched in Finland. You couldn't move from cell to cell seamlessly. It was 0G (Zero G.) 1973 April 3, 1973: Motorola's Dr. Martin Cooper calls Joel Engel, head of research at AT&T's Bell Labs, while walking in New York City using the first Motorola DynaTAC prototype. The beginning of 1G networks. 1978 Bell launches first trial commercial cellular network in Chicago. 1982 Nokia introduces their first cellphone, the analog Mobira Senator. FCC approves the analog-based Advanced Mobile Phone Service (AMPS) and assigns frequencies in the 824-894 MHz band. 1983 Motorola DynaTAC 8000X is the first commercial cellphone available in the US.MTB shuts down, still with 600 clients. 1990 FCC approves the Digital AMPS, the beginning of the end for analog networks. 1991 First commercial GSM call in the world. Done using Nokia hardware. 2G and digital begins. 1993 txt msgng apprs 4 1st time LOL. 1996 Motorola StarTAC debuts. 2000 3G appears. 2002 FCC decides to shut down the analog network 2003 GPRS and EDGE, technologies for faster (but not too fast) data transfers, launch. It's 2.5G. 3G networks are not available yet. 2007 iPhone launches. Still runs on 2.5G technology, but adds Wi-Fi for data transfer. 3G cellphones start to become ubiquitous. 2008 February 19 Cellphone analog networks can shut down
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Last edited by collarian; 19-02-08 at 05:42. |
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| Entry Appreciated By 2 Users | mahtab_persia (19-02-08), white_hat (19-02-08) |
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