In fact, Shugart himself left IBM and transitioned to Memorex in 1972, helping the company deliver the first commercially available read-write floppy disk drive (the Memorex 650). A hallmark of ...

a neat device that allows old Macs to read disk images off an SD card. This worked beautifully, but testing it out with a real floppy drive did not. Some disks simply didn’t work, although ...