bits per inch

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Noun1.bits per inch - a measure of how densely information is packed on a storage medium
density, denseness - the amount per unit size
computer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures
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References in periodicals archive ?
It increases the amount of data that can be packed onto a square inch of the drive platter, known as the drive's areal density (bits per inch X tracks per inch), by standing the bits vertically rather than lying them down horizontally.
A disk drive's storage capacity is measured by its maximum areal density - a number calculated from the bits per inch lying along a track and the quantity of tracks per inch lying radially on the recording surface.
in bytes, where N is the number of tracks across the tape, b is the linear recording density in bits per inch, L is the length of the tape (in inches) and [epsilon] is a formatting/ECC (error correction code) overhead efficiency factor (typically about 0.7).