On 1/21/23 23:23, Fred Cisin via cctalk wrote: > On Sun, 22 Jan 2023, Ethan O'Toole wrote: >> Nintendo Famicom disk system uses some kind of odd sized not swure disk. > > Is that the same 2.8"? Mitsumi "Quick Disk" floppy used in the Smith > Corona Word Processor? >
I believe so--at least the Famicom replacement drive belts work in the SCM Mitsumi drives. It's been something like 30 years since I fooled with the things (still have one in the closet) but I recall the interface was very simple--power, one line to start the spiral (controlled a solenoid clutch) and the read/write data lines. I think the Smith-Corona got something around 60K per disk,but I'd have to check my notes. Using the USART, it was very simple (this was before cheap MCUs). --Chuck
