At Microsoft's Professional Developers Conference in Los Angeles today, Rick Rashid, the head of Microsoft Research, reminded the audience that he helped write the Mach kernel 25 years ago. That piece of code is now at the core of Apple's OS X, the operating system which runs both the Mac and the IPhone. What he should be asking: Why didn't his employer think of that? (Photo by Ina Fried/CNET News)
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