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INCITS 179-1990(R1995)

M00001571

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INCITS 179-1990(R1995) Contact Start-Stop Metallic Thin-Film Storage Disk - 83 333 Flux Transitions per Track 95-mm (3.740 in) Outer Diameter and 25-mm (0.984 in) Inner Diameter and 1.27-mm (0.050 in) Thickness (formerly ANSI X3.179-1990(R1995))

standard by InterNational Committee for Information Technology Standards (formerly NCITS), 01/01/1990

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This standard provides the mechanical, physical and magnetic properties of a low-fricition disk with a diameter of 95 mm (3.740 inches) and with a typical recording density of 31.5 tracks per millimeter (tpmm) (800 tracks per inch (tpi)) with 567 flux transitions per millimeter (ftpmm) (14 400 flux transitions per inch (ftpi)) at a radius of 23 mm (0.900 inch).

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Published: 01/01/1990 ANSI: ANSI Approved