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smartphones hardware architecture

Discussion in 'Tech, Gadgets & Science Forum' started by Mtazamaji, Nov 8, 2011.

  1. Mtazamaji

    Mtazamaji JF-Expert Member

    Nov 8, 2011
    Joined: Feb 29, 2008
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    With the development of smartphones, the devices began to incorporate more and more functions. The big problem is that more features mean more chips and more processing cycles, which means higher power consumption. Because batteries do not evolve at the same speed as the appetite of the manufacturers (and buyers) with new features, compact appliances and offer a good range of batteries has become an increasingly difficult task.

    Just keep in mind that a cell with a Li-Ion 860 mAh battery offers just over 3 watts of energy (corresponding to an average laptop consumes only 5 minutes) to perform all its functions until the next refill ( to calculate the total energy stored by the battery, multiply the voltage in volts, the amperage in mAh. A battery of 850mAh and 3.7V, for example, stores a total of 3,219 milliwatts, or 3.219 watts). However, unlike what we have laptops, the autonomy of smartphones to be measured in days rather than hours. By then, you can get an idea of the size of a headache for designers.

    On PC computers, are used x86 processors such as Core 2 Duo and Phenom. They are optimized for performance chips, including a brutal amount of transistors with large L2 caches, and dedicated units for decoding instruction scheduling, branch-prediction circuits and multiple execution units per core.To get an idea, a Core 2 Duo E8200 Penryn-based core (which is a relatively small chip by today's standards) has no less than 410 million transistors and has a typical consumption of 65 watts....................................................................


    Endelea na chapisho lote @ Understanding the hardware architecture of smartphones