TPI

Webopedia Staff
Last Updated May 24, 2021 7:57 am
Short for tracks per inch, the density of tracks on a disk. For example, double-density 5.25-inch floppies have a TPI of 48, while high-density floppies record 96 TPI. High-density 3.5-inch diskettes are formatted with 135 TPI. Hard disks have TPIs in the thousands.