Thank you. I didn't know about the MCM/70 (and, aside: interesting that Wikipedia calls this article '70' which is in the 'MCM' directory). Another was https

Thank you. I didn't know about the MCM/70 (and, aside: interesting that Wikipedia calls this article '70' which is in the 'MCM' directory). Another was https://en.wikipedia.org/wiki/SCELBI https://en.wikipedia.org/wiki/SCELBI and I suppose anybody could have strapped on enough batteries in 1973 and called it a Portable. Still, Osbourne seems to have been first with the concept: https://en.wikipedia.org/wiki/Osborne_Computer_Corporation https://en.wikipedia.org/wiki/Osborne_Computer_Corporation The Osbourne 1 was in 1981, 8 years after the MCM/70 and SCELBI. It's that 8-year-gap that I find fascinating.