Lovely condition. I must admit to have being a PS/2 MCA snob after getting my first PS/2 8580 and never grabbed any ISA models later which I now regret. Sent me scuttling to consult my 3rd Edition Mueller.(I also have Eds. 5,7,8. but they don't contain the detailed specs on the PS/2).
I had a PS/1 2133 at that time and the 80 blew me away, and I became an IBM freak. I acquired many MCA PS/2s for a perod as well as IBM PC, PCjr, XT, AT, PS/1 2011 and 2021, and Ambra models. While I knew the 80 had kicked off MCA and VGA I had thought the 2011 and 2021 had preceded the PS/2s for some reason. Mueller corrected me that the 2011 and 2021 came out respectively in 90 and 91. The 25, 30, 30/286, 8550, 8560, and 8580 all came out in 87. The 80 being of these the only 32 bit model. The 8570 MCA/32 came out the next year. IBM numercal sequences still tend to baffle me. #2 should follow #1 logically,
n'est-ce pas ?
Lawrence