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Apple's A4 microprocessor is the brain of the iPad.

The A4 is an ARM processor featuring package-on-package construction to improve the speed and efficiency of internal processes.

The silkscreen on the A4 reads N26CGM0T APL0398 339S0084 YNL215X0. But that's not very interesting—those numbers don't mean much to us, either. Let's see what we can find inside.

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