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The CGA Compatibility Tester: Tests ISA videocards for register-level compatibility with CGA
Arduino Universal Floppy Disk Reader/Writer
Simple Experiments on MS-DOS 1.25 / PC-DOS 1.1
Floppy Disk formatter and Utilities for MS-DOS, resurrected!
A Collection/Set of Super/Very Old QuickBASIC Programs for Archival Purposes