By Jeff Haden,
From Inc.
In 1977, Steve Wozniak worked for Hewlett-Packard. It was his dream job. “It’s my job for life,” he once said.
But that didn’t stop him from exploring other pursuits: In what might be the most impactful side hustle of all time, Wozniak spent nights and weekends designing all—yes, all—the hardware and software for what became the Apple II computer.
And he did it without formal training. Even though he had never taken a single course, he managed to create his own operating system. Even though he didn’t have a hardware background, he managed to create his own floppy disk reader….