8 Inch floppy disk shown with 3.5 inch diskette

8 inch floppy diskettes were used in many computers, mostly minicompters, during the 70's and early 80's.

In 1971, Alan Shugart led a team at IBM that developed the 8 inch floppy diskette for data and program storage.

In 1976, IBM introduced the 5-1/4 inch diskette.

In 1981, Sony introduced the 3.5 inch diskette.