MS-DOS 4.0

MS-DOS 4.0

This version provided XMS support, support for partitions on hard disks up to 2 GB and a graphical shell. It also contained a large number of bugs and many programs refused to run on it.

Very soon version 4.01 was released with bug fixes.


MS-DOS 4.0




november 1988

5 1/4 inch
double-sided: 1,2 MB
3 1/4 inch
high density: 1,44 MB

FAT 16
2 GB HDD supported