Hah, of course not. The PC acts as a terminal/controller for this machine. Running Windows 7 on a 8 KHz CPU is impossible, even on a x86-compatible one. WinXP has been shown to run on an extremely underclocked 8 MHz Pentium CPU, booting in half an hour: https://winhistory.de/more/386/xpmini_en.htm

If you have enough RAM and patience, you can emulate anything even on small CPU. eg. https://dmitry.gr/?r=05.Projects&proj=07.%20Linux%20on%208bi...

30,000 minutes are more than 20 days. That's a lot of patience to boot Windows.

It has only 256 bytes of RAM

It definitely does not run Windows. It has 32 kB of RAM, 16-bit registers and a custom instruction set. That will never run Windows 1, let alone Windows 7 :)

That's still more memory than my old Vic20 had. :)

I doubt it. There seem to be several SBCs in the picture with the Windows terminal.

The Windows terminal is probably used to communicate with the megaprocessor.