Hallo Herr David Schwab via Freedos-devel, am Dienstag, 21. Januar 2025 um 23:05 schrieben Sie:
> From memory, XMS was earlier, time to check your memory. EMS was available for the 8088, and was VERY useful for a couple of business programs (like Lotus 1-2-3 r2, Wordperfect, SuperCalc, As Easy As, Quattro Pro) as Liam rightfully notes. > and it required both a driver and an external memory card. the card was indeed needed for 8088/80286 to access any sort of memory > 640KB. > I believe you could go as high as 8 MB. I can't recall the processor > requirements, but I know EMS required at least a 386. 80386 could emulate/implement EMS in software. > Most programs, and most technical programming books I had (like Norton) used > EMS almost exclusively. Most of the magazines I still have from that era, > like PC Magazine, seem to focus more on HMA and EMS, likely because DOS > focused more on those than XMS. quite possible. however AFAIK all programs that come with FreeDOS use XMS (if any), not EMS. correct me if I'm wrong. Both ways to handle more memory then 640 kB from real mode have pros and cons, all discussed ad nauseam in previous conversations; no need to repeat them here. In any way: if your programs use/support only EMS, EMSMAGIC is very useful. For me personally was more important that EMS would take away 64kB of upper memory, which could be used to load MS lanmanaged network drivers, and no programs that I would use supported EMS anyway. > Just my two cents. USD cents? EURO cents? or just Guyana cents? Tom _______________________________________________ Freedos-devel mailing list Freedos-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-devel
