[citation needed] As Senior Designer, Wayne established the official documentation and materials control systems at Atari.

The documentation system included operating instructions, circuit diagrams, and cabinet designs for all arcade games sold by Atari.

[7] To assist in mediation of one of their typically intense discussions about the design of computers and the future of the industry, Wayne invited the pair to his home to facilitate and advise them.

In the ensuing two-hour conversation about technology and business, Jobs proposed the founding of a computer company led by Wozniak and himself.

[8] As the venture's self-described "adult in the room"[6][9] at age 41, Wayne drafted the original partnership agreement, and the three founded Apple Computer on April 1, 1976.

[6][9] Jobs secured a $15,000 line of credit to purchase materials needed to fabricate Apple's first order placed by the Byte Shop, a business with a reputation as a notoriously slow-paying vendor.

[11][12] Furthermore, his passion was in original product engineering and in slot machines, and not in the documentation systems Jobs and Wozniak expected him to manage, possibly indefinitely at Apple.

[14] Wayne has stated in the decades that followed, he does not regret selling his share of the company, as he made the "best decision based on the information available at the time".

Wayne believed that his friend should retain ownership of the company, supplying this technology to Apple under exclusive license instead of selling the business.