The Amiga floppy disk system utilized 3.5-inch double-density (DD) disks with a native formatted capacity of 880KB, organized as 80 tracks with 11 sectors per track at 512 bytes per sector, exceeding the 720KB standard of contemporary PCs. The custom disk controller integrated in the Paula chip and the trackdisk.device driver enabled sophisticated features like disk-in-disk virtual filesystems, custom track loaders, and reliable disk operation without requiring a separate floppy controller board. Connected via a proprietary 23-pin internal port, the floppy drive served as the primary storage and software distribution medium for Amiga systems throughout the 1980s and early 1990s.