The year was 1977. Steve Jobs and Steve Wozniak had barely moved out of the Jobs' family garage to the company's first official corporate address, 20863 Stevens Creek Blvd., (Building 3, Suite C) in Cupertino, Calif.

The pair had successfully begun shipping their first computer, a naked circuit board called Apple I. It had neither a keyboard nor a screen, and functioned more as part of a kit that computer hobbyists could build into something more useful, if they knew what they were doing.

Two early Apple employees, Bob Martinengo and Mark Johnson, spoke to Business Insider about what it was like working with the two Steves back in the days when nobody knew what Apple was.