AS 3712.2:1990 数据存储和传输媒介.数据交换用90mm磁盘,改进调频制记录密度为15 916 ftrad,每面80道.磁道形式
Data storage and transfer media - Data interchange on 90 mm diskettes using modified frequency modulation recording at 15 916 ftprad, on 80 tracks on each side - Track format
Specifies the track layout, the track format and the characteristics of the recorded signals. This Standard is identical with, and has been reproduced from ISO/IEC 9529-2.