BS 7023-3:1988, EN 28378-3:1989,ISO 8378-3:1986

Guide to construction and use of 130 mm (5.25 in) flexible disk cartridges for data interchange using modified frequency modulation recording at 7958 ftprad, 3.8 tpmm (96 tpi) on both sides. Track format B|Flexible disks, Magnetic disks, Data media, Frequency modulation, Digital signals, Recording tracks, Recording characteristics, Error detection, Data layout, Magnetic flux density, Time measurement, Data transfer, Interchangeability, Data processing, Data recording, Magnetic recording, Bytes, Block formats, Dimensional tolerances, Spaced, Error-detection codes Click the banner to get it at ONLY: GBP116.00