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From: smelser@wang.UUCP (pri=8 Craig Smelser)
Newsgroups: net.micro.mac
Subject: Re: Re: Re: 800k drives faster?
Message-ID: <755@wang.UUCP>
Date: Tue, 4-Feb-86 09:24:09 EST
Article-I.D.: wang.755
Posted: Tue Feb  4 09:24:09 1986
Date-Received: Fri, 7-Feb-86 20:21:24 EST
References: <216@a.UUCP> <26700048@inmet.UUCP> <254@tolerant.UUCP>
Organization: Wang Labs, Lowell MA
Lines: 16

> According to something I saw somewhere (delphi I believe) the 800K drives
> appear faster because the drive speed and seeking, etc is all performed
> by a processor in the drive...
> 
> BTW, it isn't clear to me how well all this is going to work with copy
> protection schemes which work by stuffing strange numbers in to the PWM
> that controls disk rotation speed.  Since this is no longer used (the
> information is fed to the drive processor, which controls the rotation
> speed) I suspect it may break them.

In the May Software Supplement, Apple warned developers that this would
happen.  You might think that six months (July to January) would be long
enough for people like MicroSoft to issue updates, but I don't think they
care.  When I bought Multiplan in January, it was still version 1.02
with all its obnoxious copy-protection errors (trying to eject non-floppy
disks, etc.) and packaged with *Finder 1.0*.