Here is finally released version 4.0 of the communication standard used by mobile phones, Bluetooth,which is also compatible with laptops(Apple A1175 battery).
Version 4.0 turned ‘ on energy savings, while the latest version 3.0 has focused on power. Thanks to Bluetooth Low Energy techonology because all devices with Bluetooth 4.0 will be able to reduce the power used by the communication protocol to an impressive level , enough to equip even Bluetotth of objects powered by a button cell which watches and chronometers .
The energy saving is mainly due to good management of data flow in addition this specification allows for maximum speed when transferring large amounts of data, and can optimize the bandwidth used when data be sent are very limited to PCS(Dell Vostro 1720 battery).
The top speed will be 24 Mbit / s, thanks to the WiFi 802.11. The carrier frequency is 2.4 GHz , with temporary changes in frequency and at regular intervals to ensure proper operation even in the presence of electromagnetic interference , in addition this will also give us the security that only ispositivi exchanged data from the very ‘ beginning know the frequencies on which you will direct the next change , making it impossible snifting data . Safety was also improved through the use of 128-bit AES encryption .
Another important new feature is the 32-bit addressing : this way you can connect multiple devices simultaneously , all within a span of 100 meters.
The first devices with this technology will come out probably in early 2011, only then we will see if the fate of Bluetooth is bright or if you start to decline from Dell XPS M170 battery, from sorclassato WiFi and its future universality , simplicity, WiFi Direct.
