Even as he grows older, Microsoft founder Bill Gates still fondly remembers the catalytic computer code he wrote 50 years ago that opened up a new

Bill Gates is taking a look back at the code that started it all.The Microsoft cofounder this week published the code that became the first product of the company.Take a look at Microsoft's origins as the company turns 50 this month.

It's "the coolest code I've ever written," the Microsoft co-founder says.