bits per inch การใช้

Disks rotated at 1, 200 rpm, tracks were recorded at up to 100 bits per inch, and typical head-to-disk spacing was 800 microinches ( 20 祄 ).
The tape was wide, accommodating 6 data tracks, 2 mark tracks, and 2 clock tracks, with data recorded at roughly 350 bits per inch ( 138 bits per cm ).
Tracks one and three are typically recorded at 210 bits per inch ( 8.27 bits per mm ), while track two typically has a recording density of 75 bits per inch ( 2.95 bits per mm ).
Tracks one and three are typically recorded at 210 bits per inch ( 8.27 bits per mm ), while track two typically has a recording density of 75 bits per inch ( 2.95 bits per mm ).
The " High Speed " magnetic tape system ( called tape type 1 ) used one-inch-wide ( 25.4 mm ) magnetic tape running at 150 inches per second, with sixteen tracks at a density of 300 bits per inch.