@nixCraft Phillipe Khan was a kick... Those were heady days. Turbo Pascal, SideKick, Object Vision, the game engine for Turbo Chess, Turbo C, Paradox...

And Borland supported CP/M, as well as MSDOS/PCDOS... I helped make copies for Apollo, Heathkit, Dec Rainbow, Apricot, Northstar, Eagle... There were so many platforms.