I had an AT&T 6300+ that came from AT&T with DOS and early windows; then if you push a

key in the upper right corner, it ran UNIX. I donated my AT&T 6300+ to VCFED.ORG, along with

the UNIX software for the AT&T 6300+ PC. So, a version of UNIX ran on the 286pc. This is in

the VCFED.org warehouse in NJ.