When Apple announced the iPad, they only revealed this cryptic high level description of the processor = “1GHz Apple A4 custom-designed, high-performance, low-power system-on-a-chip.” Hardly the detailed look under the hood that I was hoping to see. We can try to guess at the internals of the chip, but the situation is similar to trying to figure out how a watch works by observing the time that it displays. Lots of room for speculation (and error).

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