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Saturday, May 13, 2006

Comments

Matt Henson

The PortalPlayer PP5021 that Apple uses in the nano is not a 16-bit chip, as reported. It uses dual ARM7TDMI cores, which are 32-bit CPU's. The Samsung chip that is rumored to be in the next nano is based on an ARM946, which is also a 32-bit CPU but runs at a higher speed and includes DSP extensions. The Samsung chip isn't substantially faster or more capable than the PLAY chip, but is likely less expensive. The ARM946 lacks an MMU, which is required for complex operating systems like Linux. If they had used something based on an ARM926 or ARM11, such as SigmaTel's STMP3600, then maybe they could run an ARM port of OS X. So, I don't believe that there is a high probability of Apple using OS X in the iPod.

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