Nowadays, the mobile phone is so important to us that it’s hard to think of life without it. However, they're a relatively new invention. This article explores the history of the mobile phone & questions what the future holds for it.
On 3 April 1973, Dr Martin Cooper, who was a Motorola employee, placed a call to rival Joel Engel, who was head of research at AT&T. Doctor Martin made the call while he was walking the streets of New York & did so through the first Motorola DynaTAC prototype in front of journalists.
The earliest mobile telephones were dubbed first generation telephones, often referred to as 1-G. These devices were the very first real mobile telephones, although they were then known as cellular mobile radiophones, & were based on analogue signalling. The analogue signal was the main difference between these first generation mobile telephones & their second generation cousins, which came out a few years later.
Second generation (2G) mobile phones were first released in the nineties. Unlike 1-G phones that were analogue, 2G phones use digital signalling to provide voice services & for text messaging & WAP internet access.
Some of the benefits of 2G phones are that they use lower radio signals, which require less battery power. This means that phones lasts a lot longer between charges, so batteries - & therefore the phones themselves - can be made littler. As well as this, 2G phones offer more privacy. Indeed, digital cellular calls are much harder to eavesdrop on than 1G phone calls.
The name 2.5G is used to refer to the phone technology that is post 2G, but not quite 3G. However, while the terms 2G & 3G are officially defined, the term 2.5G is not. In fact, this term was invented for marketing purposes only.
The earliest pre commercial 3G mobile phone network was launched in Japan in May 2001. Later, 3-G was released commercially in Japan on October 1 2001.
3G is the third generation of mobile phone standards and technology, which succeeded 2G mobile phone technology. The birth of 3-G technologies enabled network operators such as orange to offer their users a bigger range of advanced services. This includes broadband internet, as well as high tech video calls.
Despite the success of 3G, there's also been some complaints about it. These include criticism over the cost of 3G phones, as well as concerns over the lack of network coverage these phones get because it's still a pretty new service.
Ever since the launch of 3G mobile phone technology, people have been talking about 4-G. 4-G technology will signify the future of mobile telephones, creating the most sophisticated handsets & best services to date.
Maria Literral has worked in telecoms for over 20 years having spent time developing mobile communications and wireless telecommuncation... (Bio)
0 comments: