bits per inch


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bits per inch

(unit)
(BPI) A measure of the recording density of a magnetic tape or disk.
References in periodicals archive ?
The drives feature a bit density of 118,000 bits per inch and 6,100 tracks per inch, a 50 percent increase in both over the generation they replace.
In the 3-gigabit demonstration, bits were stored at a linear density of 180,000 bits per inch along concentric tracks packed at 16,500 per radial inch.
Innovative signal-processing algorithms for the data channel: A new data channel that combines an advanced timing recovery scheme with a data-dependent noise-predictive, maximum-likelihood (DD-NPML) detection scheme and a new iterative decoding scheme which together enable the reliable retrieval of data recorded on the new BaFe media at a linear density of 600,000 bits per inch with a 90nm wide GMR read head.