Apple has acquired PA Semi, microprocessor design firm for $278 million in cash, reports Forbes’ Erika Brown. PA Semi was started by Dan Dobberpuhl, a chip designer closely associated with Alpha and StrongARM chips developed by Digital Equipment. The decision to center the iPhone design around a chip that Apple could own marks a significant strategic choice by Apple Chief Executive Steve Jobs, and is aimed at ensuring Apple can continue to differentiate its flagship phone as a raft of competito
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