The IBM Diskette and Diskette Drive, James T. Engh, 1981 - "where k = 1000" ... "This increased the formatted disk capacity to 81.6 kbytes."
The IBM Diskette and Diskette Drive, James T. Engh, 1981 - "The user capacity of the diskette was established at 242 944 bytes on 73 tracks with 26 sectors on each track."
Shugart SA 400 DatasheetArchived 2014년 5월 27일 - 웨이백 머신 Formatted with 256 byte sectors and 10 sectors per track the capacity is 89.6 Kbytes (256 x 10 x 35 = 89,600)
Shugart SA 400 DatasheetArchived 2014년 5월 27일 - 웨이백 머신 Formatted with 256 byte sectors and 10 sectors per track the capacity is 89.6 Kbytes (256 x 10 x 35 = 89,600)