30 Oct
2001
30 Oct
'01
11:59 a.m.
It's conceivable that the software that the Apple][ used didn't look for an
index pulse until, nominally, the "right" time, at whic point it waited for it,
then proceeded, in which case the extra holes in the index track (not a magnetic
track) would have no impact.
The format was, nevertheless, soft-sectored, thereby allowing a smooth
transition from 13 sectors to 16 sectors, without a major redesign.
Dick
----- Original Message -----
From: "Geoff Reed" <geoffr(a)zipcon.net>
To: <classiccmp(a)classiccmp.org>
Sent: Tuesday, October 30, 2001 5:59 PM
Subject: Re: hard-sector 5 1/4 disk
At 10:23 AM 10/30/01 -0800, you wrote:
1) NO, APPLE ][ IS NOT HARD SECTORED!
Apple is COMPLETELY soft-sectored. While MOST machines that were
soft-sectored started the track with the index pulse, Apple and Commodore
ignored even the index pulse. Therefore, they would work with
soft-sectored diskettes, hard-sectored diskettes, upside down diskettes
with a write enable notch punched, etc.
2) NO, it has nothing to do with using a 6502.
It's been a LONG time since i've used an apple II, I was just going by a
friend that always used hard-sector disks on his II.