|Version of MS-DOS|
The source code contains
SYS.COM. The OEMs were expected to supply their own
FDISK.COM (if they wish to support hard drive),
IO.SYS (for their own machine containing their own copyright strings), a more usable
FORMAT.COM with a boot sector and any apps they wish to include (
RESTORE and etc.). Some OEMs customized this version of MS-DOS to support 720KB 3.5" floppy drives.
Same as earlier versions of MS-DOS, the original non-OEM
.COM binary files contain the string
Ver x.xx (from
HEADER DB "Vers x.xx" in the source code).