Those are text mode DOS programs and used whatever font was in the graphics card’s character ROM. Perhaps you’re thinking of IBM’s CGA or EGA fonts, which were

Those are text mode DOS programs and used whatever font was in the graphics card’s character ROM. Perhaps you’re thinking of IBM’s CGA or EGA fonts, which were somewhat similar. https://int10h.org/oldschool-pc-fonts/fontlist/ https://int10h.org/oldschool-pc-fonts/fontlist/