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From: cmcmanis@sun.uucp (Chuck McManis)
Newsgroups: comp.sys.amiga,comp.sys.ibm.pc
Subject: Re: Reading MacDisks on Amiga
Message-ID: <19064@sun.uucp>
Date: Mon, 18-May-87 00:41:29 EDT
Article-I.D.: sun.19064
Posted: Mon May 18 00:41:29 1987
Date-Received: Mon, 18-May-87 06:39:37 EDT
References: <8705080543.AA18112@cory.Berkeley.EDU> <112@l5comp.UUCP> <494@uhccux.UUCP>
Organization: Sun Microsystems, Inc. - Mtn View, CA
Lines: 20
Summary: I don't think so...
Xref: mnetor comp.sys.amiga:4926 comp.sys.ibm.pc:4154

In article <494@uhccux.UUCP>, yuan@uhccux.UUCP (Yuan Chang) writes:
$ In article <1542@cadovax.UUCP> keithd@cadovax.UUCP (Keith Doyle) writes:
$ >Anybody have any idea how the new IBM PS/2 line gets 1.4 meg on 3 1/2 inch
$ >floppy?  sounds like 720k a side.
$ 
$      It simply uses more tracks per side (160 tracks, versus 80 track/surface
$ on the Amiga).  Yes, it is 720K/side.
$ - Yuan Chang -

Not likely, I bet they did it the exact same way they got 1.2Meg on an AT
floppy which is to say a 500Khz data clock. That lets 'em cram 9 1K
sectors per track and with 80 tracks/side they get 1440 K of storage.
The Amiga stores 11 512 byte sectors per track and use 160 tracks
and gets 880 K. The difference is in the data clock rate. The Amiga
uses a 5.25" disk compatible 250Khz data clock.

-- 
--Chuck McManis
uucp: {anywhere}!sun!cmcmanis   BIX: cmcmanis  ARPAnet: cmcmanis@sun.com
These opinions are my own and no one elses. But you knew that, didn't you.