This is the exact FolkLore page I came back, days later, to see if it had gotten posted. The blurb "was absolutely not upgradeable" didn't sit well with me, knowing the FolkLore story. Burrell Smith was a certifiable genius, like Woz before him; and that statement just is too rigid and unfairly underplays Smith's design. I'm glad somebody posted the FolkLore page.
But to Burrell Smith and Steve Wozniak, and Brian Howard, and Bill Atkinson and Andy Hertzfeld and Bruce Horn and Steve Capps, and Bud Tribble, and Joanna Hoffman and Susan Kare, and Jef Raskin, and on and on, the early Mac team names should be household names in the US. These folks all were certifiable geniuses. Only, now everybody knows Steve Jobs. Just Steve Jobs. I hear so many wrong Steve Jobs stories it is almost incredible. From adults, from kids. It pains me that the public Oral History of computing is as screwed up as it apparently is. But, especially in this one case, the Macintosh RAM, Burrell Smith especially deserves better than "was absolutely not upgradeable", and more over he deserves that his accomplishments be better known to the technologist culture.
(As an aside, it also worries me greatly that the 'veil of secrecy' that "new" "2nd coming of Jobs" Apple has hidden itself behind has largely also served to completely destroy any chance that we, the lovers of such FolkLore, will ever find out the names and personalities behind more recent Apple successes. We've heard of a few names, like Avie Tevanian and Jon Rubenstein and Tony Fadell and Scott Forstall, but they have even mostly been papered over by a nearly cult-like projection of Jony Ive as the sole "Wizard" behind the curtain. Apple Execs like Craig Federighi and Phil Schiller instead get stage time, though Kevin Lynch has been getting some time too. Even if you read Apple's marketing, you'd think Angela Ahrends and Tim Cook are in the trenches inventing stuff which just completely belies what we know of how the process actually works from reading stories like FolkLore. We wonder why kids don't run into STEM? Maybe its because the "Rock Stars" are seemingly all people who don't actually play the instruments, they just lip sync acceptably and can line dance really good after enough practice.)