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From: plocher@puff.wisc.edu (John Plocher)
Newsgroups: net.unix
Subject: Re: 3b2's on/off switch
Message-ID: <288@puff.wisc.edu>
Date: Fri, 31-Oct-86 20:02:50 EST
Article-I.D.: puff.288
Posted: Fri Oct 31 20:02:50 1986
Date-Received: Sun, 2-Nov-86 23:56:24 EST
References: <105@houligan.UUCP>
Reply-To: plocher@puff.WISC.EDU (John Plocher)
Organization: U of Wisconsin CS Dept
Lines: 14

>I have been following the discussion about the 3b2's which switch their own
>power on and off via software-controlled relays or triacs.  (Did anyone in
>netland ever see the Apple Lisas that also did this? ...

    And when you had a software bug and got stuck in a loop with
    interupts disabled (The on/off switch generated an interupt...) you
    couldn't reboot the machine.  If you unplugged the Lisa, you stood a
    large ( >> 50%) chance of trashing your hard disk...  What to do?
    Apple SOON added a hardware reset button!
-- 
"Never trust an idea you get sitting down" - Nietzche
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