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
数据交换用130毫米(5.25英寸)盒式软磁盘的构造和使用指南 使用7958 ftprad、3.8 tpmm(96 tpi)两侧的改进调频记录 曲目格式B