3 ms·
There were even machines with MS-DOS which were not PC compatible. Only DOS programs using pure BIOS calls (no direct manipulation of video memory) would work.
by jacobush 7y ago
There were even machines with MS-DOS which were not PC compatible. Only DOS programs using pure BIOS calls (no direct manipulation of video memory) would work.
- echeese 7y agoAnd those BIOS calls were so much slower