9 Apr
2002
9 Apr
'02
3:25 p.m.
On Tue, 9 Apr 2002, Gene Ehrich wrote:
At 04:53 PM 4/9/02 -0700, you wrote:
NOR DOES THE DISK CONTROLLER.
I installed a PC HD 5.25" floppy in my
long-suffering PCjr by replacing the
old IBM drive. It all seems to work on DD disks, but not HD disks. Do I need
to upgrade something else? (being somewhat ignorant on old PCs).
PCjr with 128K RAM expansion, floppy card, parallel port module, Cartridge
BASIC running IBM PC DOS 2.1.
The problem is the operating system. DOS 2.1 does not support high density
floppies.