-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 5 Sep 2005 at 12:59, Amichai Rotman wrote: > > Just to answer the "why it reads directories and not the data?" - the directory structure is on track > 0, sector 19 (and has a backup somewhere). it contains only pointers to the first track / sector > where the respective file is. > 5 1/4 inch diskettes had either 8, 9, or 15 sectors, and were single or double sided. 160K 1 side 8 sectors / track 40 tracks 180K 1 side 9 sectors / track 40 tracks 320K 2 sides 8 sectors / track 40 tracks 360K 2 sides 9 sectors / track 40 tracks 1.2M 2 sides 15 sectors/ track 80 tracks I recall one format of the older 8" diskettes that had 26 sectors, but don't recall any more specifics. This link has some info, but didn't notice a break down of the sectors beyond the boot sector, and then there are two copies of the FAT. http://alumnus.caltech.edu/~pje/dosfiles.html I recall using these floppies on my 1983 HeathKit computer. +----------------------------------------------------------+ Michael D. Setzer II - Computer Science Instructor Guam Community College Computer Center mailto:mikes@xxxxxxxxxxxxxxxx mailto:msetzerii@xxxxxxxxx http://www.guam.net/home/mikes Guam - Where America's Day Begins +----------------------------------------------------------+ http://setiathome.berkeley.edu Number of Seti Units Returned: 17,594 Processing time: 31 years, 263 days, 23 hours, 41 minutes (Total Hours: 277,896) -----BEGIN PGP SIGNATURE----- Version: PGP 6.5.8 -- QDPGP 2.61c Comment: http://community.wow.net/grt/qdpgp.html iQA/AwUBQxunNyzGQcr/2AKZEQLlhACfVAw+if64g/J2Al6VQjH5Dhv89KIAnRTg 2BISJZLHEkOad7/dxcei9IUg =I9gj -----END PGP SIGNATURE-----
