Trixter
Veteran Member
On that CGA system, installing a Hercules monochrome graphics card and using UMBHERC.SYS from PC DOS 6.1 or higher would give you 60K of UMB space for loading drivers and TSRs -- and you'd still be able to use the Hercules card in MDA text mode on a monochrome display. Or at least that's how it's supposed to work; it's been years since I had a Hercules-compatible card.
I was under the impression that Hercules cards have 32K, which means I would gain 28K.