Invented by Alan Shugart at IBM in 1967, the original floppy disk design measured ... CDs had been adopted more widely. Before USB flash drives proved to be the most popular rewritable storage ...

but in 2020 it’s simply a USB floppy drive, a Raspberry Pi, and a battery pack. He’s given us the full instructions, and no doubt a more permanent version could be built with a 3D-printed case.