Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84 (Fortune 01.1b1); site graffiti.UUCP Path: utzoo!linus!philabs!cmcl2!seismo!ut-sally!ut-ngp!shell!graffiti!peter From: peter@graffiti.UUCP (Peter da Silva) Newsgroups: net.micro.amiga Subject: Re: Amiga disk capacity Message-ID: <224@graffiti.UUCP> Date: Sun, 22-Sep-85 09:15:41 EDT Article-I.D.: graffiti.224 Posted: Sun Sep 22 09:15:41 1985 Date-Received: Wed, 25-Sep-85 10:34:34 EDT References: <538@oakhill.UUCP> <4349@alice.UUCP> Organization: The Power Elite, Houston, TX Lines: 23 > When you multiply 80 tracks time 11 sectors/track time 512 bytes/sec, you > get 440K all right (formatted.) The Amiga drive is double-sided, and > NOT flip double-sided. It works, I suspect, like an IBM PC drive, > alternating tracks on one side then the next (two r/w heads.) Thus the > drive is 880K. I hope you can tell it to use 9 secs/track for compatibility with everyone elses 3.5" formats, which all seem to be 720K. > The Atari 530ST, on the other hand is something like 360K per side, > and you must physically flip and notch in holes I suspect to get the > amount Atari advertises. You can't flip & punch holes on a 3.5" diskette, friend. It's not physically possible. Well, I don't know about the 530ST, but I just played with a 520ST at a computer store, and it had DS 3.5" drives. They also have SS drives, which may be what's confusing you. Incidentally Let me give the 520 an A for ambition and a C- for implementation. It would really have been better to just give it CP/M68K and toss in GEM as an extra instead of mashing the two together like that. It looks like a toy. It feels like a toy. And now people who want to do their own windowing stuff and make at look like a real workstation are out of luck.