... that there was an 80186 processor -- Intel's first 16-bit x86 offering. It was popular in embedded applications, but a few workstations based on it were made -- one of them being the Tandy Model 2000, a not-quite-IBM-compatible, MS-DOS-based PC which you could buy at Radio Shack. I owned a second-hand one of these, and even learned how to write assembly on it.
What I didn't learn until recently was that there was a version of Windows for this curious beast, and indeed the 2000 played an integral role in the development of Windows. Unlike its IBM cousins, the 2000 was offered with a high-res, 640x480 color graphics card as a standard option, and Microsoft was interested in implementing a full-color display for Windows. So, Microsoft developed the initial versions of color Windows on the 2000, and Bill Gates touted that fact in celebrity endorsements for Tandy ads.
The much more modular driver architecture of Windows -- a revolution in PC software at the time -- enabled it to be smoothly ported to the Tandy 2000 irrespective of the hardware incompatibilities that made it not a true PC compatible.