This stack of IEEE drives was used during testing of Michal Pleban's port of IBM DOS 3.30 to the CBM-II. Michal has a GITHUB page that explains how it works in detail but in short he created a PC compatibility layer that functions between the 8088 co-processor card on the CBM-II and the 6509 CPU on the main board. Click image for larger view.

I used a Zoom Floppy with an IEEE adapter added to build the disks using CBM Transfer. This was tricky, the software does not work perfectly. I was able to write the D82 image to 8050 drive, the D80 image did not transfer correctly. Click image for larger view.

A closeup of the boot screen. Click image for larger view.

The CBM BX700 booting IBM DOS 3.30. The little black circle on the keyboard is one of the keyboard's rubber feet, which fell off. It's not part of the keyboard. Click image for larger view.