Short for tracks per inch, TPI is the number of tracks a disk can hold. For example, a 5.25-inch floppy disk (double density) has 48 TPI, a high-density 3.5-inch disk has 135 TPI, and hard drives have much higher TPI, well into the thousands.
Computer acronyms, Floppy drive terms, Hard drive terms
Related information
- Floppy drive help and support.
