And here's another article from 1993 in PC Magazine which goes into detail, and with a bit more accuracy than the original article for this HN discussion (for e

And here's another article from 1993 in PC Magazine which goes into detail, and with a bit more accuracy than the original article for this HN discussion (for example, it explains how XMS works on the 286): https://books.google.com/books?id=gCfzPMoPJWgC&pg=PA302&lpg=PA302&dq=xms+loadall&source=bl&ots=rmlgK_Hia9&sig=skK-3_tKMmhbFteI4FgBgnYTUhc&hl=en&sa=X&ved=0ahUKEwjbgMq26aTTAhVdImMKHSnTACUQ6AEIMDAC#v=onepage&q=xms%20loadall&f=false https://books.google.com/books?id=gCfzPMoPJWgC&pg=PA302&lpg=...