What is a "Diskette"?
Diskette is another term for a floppy disk. More specifically, it refers to the smaller floppy disks that were created after the original ones.
Quotes
The first floppy drives used an 8-inch disk (later called a "diskette" as it got smaller), which evolved into the 5.25-inch disk that was used on the first IBM Personal Computer in August 1981.
Gary Brown "How Floppy Disk Drives Work" 26 February 2001 [https://computer.howstuffworks.com/floppy-disk-drive.htm] (accessed 2025-01-11)