"bpi." YourDictionary, n.d. Web. 13 October 2018. <http://www.yourdictionary.com/bpi>.
bpi. (n.d.). Retrieved October 13th, 2018, from http://www.yourdictionary.com/bpi
bpi - Computer Definition
(Bits Per Inch) The measurement of the number of bits stored in one linear inch of a track (storage channel) on a disk or tape. Bit density on magnetic disks has reached 800,000 bpi (800 Kbpi). See tpi, areal density and magnetic disk.