The era when mobile phones used to call prosaically seems distant when we see what the current supply can be: surf the Internet, send and receive email, navigate with a GPS, watch video, take photos, etc.. The list of possibilities offered by these small devices takes the inventory to Pervert as it expands with each new generation and new technological revolution
Understand the technical vocabulary
Before entering the race for the treasure, passing through the sheet manufacturer is often a barrier alone, both the words used are obscure to the uninitiated. Overview of the less obvious terms:
GSM: Acronym (G) lobal (S) ystem (M) obile Communications, GSM is a standard for mobile communication established in 1982 and using the 900 MHz frequency. Designed for communications-type voice, it is still widely used, so that GSM is the name of mobile phones in some countries.
GPRS (or 2.5G): Acronym (G) eneral (P) Acket (R) adio (S) ervice, GPRS is a technology of GSM communication issue which allows the improvement of upstream and down on phones mobile and has paved the way for the mobile Internet. There remains much slower than UMTS.
UMTS (or 3G): Acronym (U) niversal (M) obile (T) elecommunications (S) ystem, UMTS 3G is also called (because it is the third generation communication standard). To achieve data rates in the city of about 384 kbit / s (for 1920 Mbit / s theoretical throughput), UMTS is the evolving needs of mobile users wishing to use the Internet and resources on their mobile phones. However its implementation requires a specific installation, compatible devices and major investments, so that its development is being delayed even in France and Europe. In addition, unwilling to invest in technology too expensive and not sufficiently profitable immediately, many European operators have chosen to ignore on UMTS, preferring the EDGE or HSDPA.
EGDE (or 2.75 billion): Acronym (E) nhanced (D) ata (R) ates for (G) SM (E) volution, the EDGE is an evolution of GSM, which can reach speeds close to those of UMTS (384 Kbps) but without significant investment since the EDGE is compatible with GSM. However, its sustainability facing UMTS is not assured because of a low scalability (the theoretical maximum speed of EDGE is only 473 kbit / s) in the face of growing needs in the consumer side.
HSDPA (or 3G or 3.5 + G): Acronym (H) igh (S) peed (D) ownlink (P) Acket (A) ccess, HSDPA is simply called 3G +. It offers (compared with 3G "classical") for theoretical speeds up to 14.4 Mbit / s. Simple evolution of UMTS, it could nevertheless become a standard if operators, burnt by the costs of the UMTS equipment and willing to put forward highly profitable services such as music, video or TV on mobile chose to go directly to this development.
Dual / Tri / Quad: These terms refer to the main beaches of frequency with which your phone is compatible. These frequency ranges differ depending on the parts of the globe. To work in France, a phone must be at least dual-band (900 and 1800 MHz). To work in Asia and the United States, it must be tri (1900 MHz). To work around the world without restriction, it should be quad (850 MHz).
Bluetooth: The Bluetooth (literally "blue tooth", the nickname of the Danish King Harald 1 which had unified the Scandinavian countries in the tenth century) is an invention of the Swedish company Ericsson (now merging with the mobile division of Sony, Sony - Ericsson), which makes mobile devices communicate with each other. Based on a radio technology for short distances, Bluetooth allows download speeds of 1 Mbps in its original version. In the world of telephony, Bluetooth is widely used in hands-free kits, headsets and other headsets, but it can also be used to communicate between two compatible or synchronize them with his laptop computer (if it is equipped with Bluetooth).
Bluetooth stereo (or A2DP): More particularly suited to wireless headsets, Bluetooth stereo you can listen to music direct (Streaming) between two Bluetooth devices provided that your phone integrates Bluetooth stereo (in the Otherwise, the sound would be limited to mono).
MicroSD (formerly known as TransFlash) for MicroSD Micro Secure Digital. This is the format most widely used memory cards for mobile phones. Barely bigger than a 1 euro coin, MicroSD cards offer capacities ranging from 16 MB to 2 GB near Changes to the format MicroSDHC (for High Capacity) is expected to produce up to 32 cards Go noted that the manufacturer Sony Ericsson has preferred to keep its proprietary MemoryStick Micro M2 on the majority of its models.
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