There were apparently several models of Micro-A. There were definitely versions that as you say were a SCAMP card in a PC-class machine running OS/2. I think

There were apparently several models of Micro-A. There were definitely versions that as you say were a SCAMP card in a PC-class machine running OS/2. I think there were also SCAMP based Micro-As that ran "native", but I can't be sure. As to purchasing one, since it was designed from the start to be an "all-in-one" product for a relatively non-technical crowd, I image as long as all the hardware worked, you'd have a working system and would only need to learn MCP (complicated, but for which there is excellent doco and people who currently use it for help). However, if anything didn't work or failed later (especially the disk), you probably have an interesting paperweight. There aren't exactly a bunch of spares or OS install tapes running around. That said, I've never seen a Micro-A for sale on eBay or otherwise, and only know one person that has one. By comparison, the P/370, P/390 and other IBM-mainframe-card-in-a-PC show up a couple of times a year one place or another, though I've never seen one go cheap. Re: AS/400: Oh, yeah...glad I never got bit by that bug. It's crazy trying to understand various piece parts of that ecosystem. Bonus: as I understand, the software licenses for an AS/400 are not transferable.