Year: 1976

It wasn't the first personal computer, but it's gone down in history as one of the most important. Steve Wozniak built the wood-enclosed machine, which featured a 1-MHz processor and had 4 KB of memory, but it was Steve Jobs who decided the two should sell it. It went on sale four months after the founding of Apple Computer, Inc. and sold for $666.66, reportedly because the Woz liked repeating digits. Makes sense, as he saw the digits in his bank account repeat like crazy over the next couple decades.