Three men founded Apple Computer on April 1, 1976.

And while we're all familiar with Steve Jobs and Steve Wozniak, you probably have never heard of Ronald Wayne, Apple's third-co-founder, who bailed out early, and gave up his ten percent stake in Apple for $800.

Had he kept it, that stake would be worth $35 billion today

But he insists he has absolutely no regrets.

Wayne, now 78 and living in semi-retirement in Pahrump, Nevada, tells CNBC he first met Jobs while working as an as chief draftsman for Atari, back in the 1970s.

He was 42 at the time and brought on as "adult supervision' to Apple Computer, an idea originally hatched during their time at the Homebrew Computer Club.. Wayne drafted Apple Computer's original incorporation document, wrote the manual for the Apple I computer, and even designed its first logo, depicting Isaac Newton sitting under a tree.

His participation in the startup gave him a ten percent ownership stake.