Re: way to power off my PC.

Article View: comp.os.msdos.programmer

Article #3364

Back to comp.os.msdos.programmer Previous Next

#3364

From: Oliver Oldach
Date: Fri, 06 Nov 1992 11:31

15 lines
1221 bytes

Hi Fiona, 

all you need is any means to signal any outside hardware you want to 
pull the plug! You could use a special I/O card using the IC8255 chip
to provide you with extra ports, but much easier would be if you 
use one of your com ports and utilize i.e. the DSR (data set ready) line.
The state of the line can be controlled directly by setting/resetting 
the corresponding bits at the I/O port adress.

The outside hardware could probably be realized with a couple of resistors,
a transistor and a relay for switching the computer off.

 
Oliver

Technical Details

Message-ID: <1992Nov6.113105.13714@Informatik.TU-Muenchen.DE>

Path:

arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!sdd.hp.com!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!ira.uka.de!gmd.de!Germany.EU.net!news.netmbx.de!mailgzrz.TU-Berlin.DE!math.fu-berlin.de!informatik.tu-muenchen.de!oldach

Show Full Headers

Complete Article Headers

Newsgroups: comp.os.msdos.programmer
Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!sdd.hp.com!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!ira.uka.de!gmd.de!Germany.EU.net!news.netmbx.de!mailgzrz.TU-Berlin.DE!math.fu-berlin.de!informatik.tu-muenchen.de!oldach
From: oldach@Informatik.TU-Muenchen.DE (Oliver Oldach)
Subject: Re: way to power off my PC.
Originator: oldach@hphalle6i.informatik.tu-muenchen.de
Sender: news@Informatik.TU-Muenchen.DE (USENET Newssystem)
Organization: Technische Universitaet Muenchen, Germany
Date: Fri, 6 Nov 1992 11:31:05 GMT
Message-ID: <1992Nov6.113105.13714@Informatik.TU-Muenchen.DE>
Distribution: world 
Lines: 18