Gregg Squires, Atari Manager of Hardware Engineering Gregg Squires was a Manager of Hardware Engineering at Atari from 1982 through 1984, working from their New York office. He was project manager for Val, a cost-reduced version of the Atari 2600; and project manager for the Atari XL computer series. He was co-designer of the 65816 microprocessor architecture. Greg sent me a scan of an Atari 600XL Product Status Meeting handout dated January 1983. It's an impressive 45 pages and paints a clear picture of the timeline, costs, and issues involved with creating that computer. This interview took place on February 13, 2019. Atari VAL photo Atari 600XL Product Status Meeting Handout The Working Clock-Timer by Joel Moskowitz ANTIC Interview 65 - Steve Mayer, 400/800 Designer