Historical sequence of floppy disk formats , including the last format to be generally adopted -- the `` High Density '' NUMBER@1 NUMBER@2 - inch HD floppy , introduced NUMBER@3 .

Capacities align = `` bottom '' | Historical sequence of floppy disk formats , including the last format to be generally adopted -- the `` NUMBER@4 MB '' NUMBER@1 NUMBER@2 - inch HD floppy , introduced NUMBER@3 .
