In the 1970s, Gates and his Microsoft co-founder, Paul Allen, used a computer in Harvard's lab to compose what he calls the 'coolest code I've written.' It's now public for the first time. Ahead of ...

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This 1975 photo provided by Gates Ventures shows Microsoft founder Bill Gates holding a printout of the computer coding that launched the software maker. (Ian Allen/Gates Ventures via AP) (Ian Allen) ...

PCMag editors select and review products independently. If you buy through affiliate links, we may earn commissions, which help support our testing. Ahead of Microsoft's 50th anniversary this week, co ...