Floppy Disk Formats 720KB 3.5" DS/DD 1.44MB 3.5" DS/HD 2.88MB 3.5" DS/ED (IBM only) 360KB 5.25" DS/DD 1.2MB 5.25" DS/HD DS = double sided DD = double density HD = high density ED = extra=high ...

A method for converting a single-sided 5.25" floppy disk into a double-sided disk. By punching a second notch in the jacket, the disk could be flipped over and inserted upside down. This was a ...

In this episode of [Adrian’s Digital Basement], we dive into the world of retro computing with a focus on diagnosing and repairing an old full-height 5.25-inch floppy drive from an IBM 5150 system.