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Wysłany: Pon 11:43, 19 Sie 2013 Temat postu: barbour paris The History of Mobile Phones |
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Mobile phones have [link widoczny dla zalogowanych] recently been transformed from a pricey item used by business people to a very popular personal communications device that's used by most of the general population. Indeed, mobile telephones outnumber land-line phones in many countries.
The mobile phone began life as the two-way radio, which was also known as mobile rigs. These were installed in vehicles such as cabs, police [link widoczny dla zalogowanych] cars and ambulances, although were not strictly mobile phones as they were not usually connected to the telephone network.
The first generation of mobile telephones are often dubbed 1G. These mobile telephones are the analogue items that were introduced in the 1980s and continued until they were replaced by 2G mobile telephones, which [link widoczny dla zalogowanych] ran on digital networks.
Second generation, also called 2G, mobile telephones were [link widoczny dla zalogowanych] introduced in the nineties. 2G [link widoczny dla zalogowanych] telephone systems were different because of their use of digital circuit transmission & the introduction of advanced & fast telephone to network signalling.
The introduction of 2G systems [link widoczny dla zalogowanych] saw telephones move from quaint 1-G telephones to little hand held items, which were much more moveable. This change was possible through technological improvements such as more advanced batteries & energy efficient electronics.
The second generation mobile telephones had several advantages over 1-G items, which includes the launch of SMS messaging. The [link widoczny dla zalogowanych] first machine-sent message was sent in the UK in 1991. The first person to person SMS text message was sent in Finland in 1993. SMS text messaging soon became the communication method of choice & the public now prefer sending [link widoczny dla zalogowanych] text messages to making voice calls.
The very earliest pre commercial 3g mobile telephone network was launched in Japan in May of 2001. Later, 3G was commercially released in Japan [link widoczny dla zalogowanych] on 1 October 2001.
3G is the third generation of mobile phone standards & technology, which is the successor to 2G technology. The arrival of 3G technologies enabled network operators, like Orange and O2, give their users a bigger range of high-tech services. [link widoczny dla zalogowanych] This includes broadband wireless internet, as [link widoczny dla zalogowanych] well as high-tech video calls.
Despite the success of 3G, there's also been lots of complaints about it. These include criticism over the cost of 3-G phones, concerns over a [link widoczny dla zalogowanych] lack of network coverage & criticism over the amount of power that 3G phones use.
After 3G, we can get excited about the debut of 4G technology, which should be the best and most advanced mobile phone technology yet.
Thank you for browsing our article about the invention of the mobile phone. As you have probably realised by now, the mobile phone has come a long way since it was initially launched and chances are, it will be developed further still.
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