Date: Sun, 26 Dec 1999 12:22:57 +0900 From: KATO Takenori <kato@ganko.eps.nagoya-u.ac.jp> To: green@FreeBSD.org Cc: kato@ganko.eps.nagoya-u.ac.jp, FreeBSD-hackers@FreeBSD.org Subject: Re: device name of floppy disk Message-ID: <19991226122257Z.kato@gneiss.eps.nagoya-u.ac.jp> In-Reply-To: Your message of "Sat, 25 Dec 1999 13:12:35 -0500 (EST)" <Pine.BSF.4.10.9912251308390.12671-100000@green.dyndns.org> References: <Pine.BSF.4.10.9912251308390.12671-100000@green.dyndns.org>
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Brian Fundakowski Feldman <green@FreeBSD.org> wrote: > They're all synonymous, so I'd say that they're different names for a > double-sided, high density 5.25" floppy. The difference between 135 > and 96 is probably sector sizes. In any case, I wouldn't worry over > them at all. Thank you! Track densities of 5" and 3.5" disks are 96 and 135 tpi, respectively. > When's the last time you saw new modes for 5.25" floppies? I'm not > being sarcastic; I'm just pointing out that they're all obsolete. I know following disks: 1 8"/5" HD double side 1024 bytes/sector 8 sectors/track, 77 cylinders 2 5" DD double side 512 bytes/sector 8 sectors/track, 80 cylinders 3 5" DD double side 512 bytes/sector 8 sectors/track, 80 cylinders 4 3.5" DD double side 512 bytes/sector 8 sectors/track, 80 cylinders 5 8"/5" HD double side 256 bytes/sector 26 sectors/track, 77 cylinders 6 3.5" HD double side 256 bytes/sector 26 sectors/track, 77 cylinders 7 5" DD double side 256 bytes/sector 16 sectors/track, 77 cylinders and so on (including DEC PDP-11 :-)). I'm trying to add 1, 2, 3 and 4. -----------------------------------------------+--------------------------+ KATO Takenori <kato@ganko.eps.nagoya-u.ac.jp> | FreeBSD | Dept. Earth Planet. Sci, Nagoya Univ. | The power to serve! | Nagoya, 464-8602, Japan | http://www.FreeBSD.org/ | |http://www.jp.FreeBSD.org/| ++++ FreeBSD(98) 3.3R-Rev. 01 available! +==========================+ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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