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
References in periodicals archive ?
The first tape drives implemented a 7-track recording format on an eight-inch diameter reel and had a linear recording density of 100 bits per inch and had a capacity of 1MB or the equivalent of 12,500 punched cards.
However, the operating parameters of the drive and media are superior to the old technology in transfer rates, tracks per inch, bits per inch, data density and spindle RPM, thereby creating a new APM standard.
Some 490,000 bits per inch were written along the concentric tracks packed at a density of 41,400 per radial inch.