# Disk Sizes

## Disks Sizes

You may be wondering why there are various disk sizes. AppleWin supports floppy disk and hard drive images.

- A standard 5.25" floppy disk normally has 35 tracks. This disk can hold 140 KB.
- An extended 5.25" floppy disk may have up to 40 tracks. This disk can hold 160 KB.
- When the Apple //c+ came out it came with a 3.5" floppy disk drive. This disk can hold 800 KB. Vanilla Apple DOS 3.3 does NOT support this larger disk size; you must use another Operating System such as ProDOS.
- Hard drives can hold even more data; the maximum size under ProDOS is 32 MB. Vanilla Apple DOS 3.3 does NOT support this larger disk size; you must use another Operating System such as ProDOS.