NOTE: Unlike most IBM PC machines on PCjs, the DIP switches on this machine have been set to indicate four floppy disk drives (
0xxxxx00) instead of the usual two drives (
0xxxxx01). This can result in some confusion, depending on which version of DOS you’re using and what your expectations are.
For example, PC DOS 3.20 will assign drive letters A-D to the floppy drives and drive letter E to the hard drive, whereas MS-DOS 5.00 always starts with drive letter C for any hard drives, regardless of the number of floppy drives; since this machine has only one hard drive, MS-DOS 5.00 will assign drive letters D and E to the 3rd and 4th floppy drives.
PCjs does not interrogate the operating system’s drive letter assignments, so the removable drive letters displayed in the PCjs UI will always be A-D. The UI could display drive numbers instead of letters (eg, 1-4), but that would be more confusing for the average user and the typical machine, so I’ve decided to leave things as they are.
[PCjs Machine "ibm5160-vga"]
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