Robert, just for clarification the HP 9122 is a dual 3.5in. floppy drive (360KB per drive) with a GPIB connector. The HP9122C is the same but both floppy drives are 1.2MB.
They were used a lot with the HP ETE and technical workstations in the 1970¡¯s and 80¡¯s. They can be used to load software and sisters onto the older HP ETE.
Don Bitters
