Invented by Alan Shugart at IBM in 1967, the original floppy disk design measured 8 inches (200mm) in diameter, stored 80KB of data and became available for purchase in 1971 as a part of IBM's ...

IBM offered an extra-high density 2.88MB drive on selected PCs that was backward compatible, but the format never caught on. Floppy Disk Formats 720KB 3.5" DS/DD 1.44MB 3.5" DS/HD 2.88MB 3.5" DS ...

In the case of Copy-Lock, Sector 1 on track 6 was intentionally written as only 256 bytes ... you can’t create this disk structure with a standard IBM PC floppy disk controller; you need ...

See Zip disk and Floptical. (2) An earlier 3.5" floppy disk developed by IBM and available on certain IBM PCs. With a 2.88MB capacity, the Extra High Density (ED) floppy drives were compatible ...

Floppy disk controller based on Intel 82077AA or National Semiconductor PC8477 FDC IC. Supports IBM PC, AT, and PS/2 floppy types from ... compatible UART in PLCC-44 package 1 16550/16C550 (16-byte ...