20-year changes of the mobile phone communication ... - Blogdetik

When we use the BP machine, a great time is coming down. Wireless communication began to enter people?s lives.Let?s look at how We are the from the era of the BP machine evolved to & 4G times.
Motorola, in the thirties of the last century, it had an absolute monopoly of the communications industry. The beeper is it made by the representatives of the market, accounting for more than 80% of the global wireless communications terminal. Of course, when the wireless communication is limited to sending a text message. Voice calls in this day and age people can not communicate wirelessly. Fixed-line telephone is still the king of the communications industry.
Who is the world?s first mobile phone? In the true sense of the world?s most important mobile phone Motorola mobile phone, was born in April 1973, inventor Martin Cooper of the United States. At that time, Cooper is well-known U.S. Motorola?s engineering and technical personnel. The phone is one of about two large bricks of wireless phones.
This is the world?s first a mobile phone to call his work at Bell Labs, a rival, the other was also in the development of mobile phones, but have not yet succeeded. Cooper later recalled: "I called him and said: ?Joe, is using a portable cellular phone to call you.? I hear the other end handset ?teeth? - although he has maintained a fairly courtesy. "
From the phone registered patents in 1973, until 1985, before the birth of the first in the modern sense, the real mobile phone. It is the will power and an antenna placed in a box, the weight of three kilograms, very heavy and inconvenient, and the user wants to like a backpack walking carrying it, so called "shoulder phone". Until now, you can still see its shadow, this design is applied to military products.Until then the wireless voice call quality of the machine is getting smaller and smaller, as small as we can hand carry, we really sense that this machine is "mobile phone".Cellular communications technology allows the call to become more simple, also supports the transmission of the text of BP machine era.
said the mobile phones, one must mention one mobile phone (moviles dual sim) manufacturer - Nokia.The term phone is no longer monotonous with communications functions, while it leads to a trend of the times.However, each are classic Nokia also no match for the 3G (smartphone dual sim android a9300) trend of history.The main difference between 3G and 2G is to enhance voice and data transmission speed, it can better achieve the worldwide wireless roaming, and process images, music, video streaming and other forms of media including web browsing,conference calls, e-commerce, information services, taking into account also a good compatibility with the existing second generation system. In order to provide this service, the wireless network must be able to support different data transfer speed, and means that the indoor, outdoor, and driving environment can support at least 2Mbps (megabits / second) and 384kbps (kilobits / second) and the transmission speed of 144kbps (this value according to the network environment changes).
This means that people can be more exchanges, text, sound, image, video and other documents are available on the telefonos baratos con android phone for wireless transmission.
But you will not never imagine that today we went back to the era of the BP machine communication.At some point, the text or image data suitable for communication and exchange.Long-distance communication so that we are no longer accustomed to the monotonous voice communication, the use of the business, we can not with the mouth contract, if you want to do business with Chinese manufacturers.Thus, the text form of communication is increasingly important.Instant Messaging MSN, the keyword advertising Google search.Social networking giant facebook.These increasingly sophisticated information exchange center, are based on the text as a basic means of communication.
So, your phone can send text messages? Your mobile phone(moviles baratos) can receive mail? Your phone can play facebook? Your phone can use the search engine?

This entry was posted on Selasa, Juni 5th, 2012 at 09:37 and is filed under Tak Berkategori. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

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