Article View: comp.os.msdos.misc
Article #24Re: More than 4 com-ports under Ms-dos 5.0??
From: George Pontis
Date: Wed, 28 Oct 1992 05:11
Date: Wed, 28 Oct 1992 05:11
40 lines
2026 bytes
2026 bytes
MSUORANTA@finabo.abo.fi (Mika Suoranta Tkkk) writes: > > MORE COM-PORTS?? > > Does anyone know how one could possibly have > more than 4 Com-ports in one computer? I've an 286 > machine running under Ms-dos 5.0 and as far as I > understand the operating system sets the limit. > > I have to connect: > 1) printer (my printer doesn't have parallel) > 2) mouse > 3) telephone modem *) > 4) packet radio modem > 5) RTTY-modem > > *) this goes to an expansion card slot but > still takes one interrupt address > > Could there be some special device driver which would > permit more ports in expansion cards? I don't quite > like the idea of a big switch for some external > devices - even if I don't have to have all of them > connected and running the > > thanks, > Mika OH1NZQ Mika, With regard to your mouse ... It is possible to get a bus mouse, and set it for either IRQ2 ( on an AT ) or IRQ5 ( if you don't have a second parallel port ). I have a Microsoft bus mouse installed in exactly this manner, using the latest version of the driver, 8.20. One caveat with IRQ2: make sure that your EGA/VGA does NOT use IRQ2. If it can be disabled on the graphics card, then do it! There's essentially no software that uses the interrupt from an EGA. -- George Pontis ( geo@netcom.COM )
Technical Details
Message-ID:
<1992Oct28.051136.355@netcom.com>Path:
arc1-ca.pugleaf.net!sparky!uunet!ogicse!usenet.coe.montana.edu!decwrl!csus.edu!netcom.com!geoReferences:
<1992Oct27.160957.2524@abo.fi>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!sparky!uunet!ogicse!usenet.coe.montana.edu!decwrl!csus.edu!netcom.com!geo From: geo@netcom.com (George Pontis) Newsgroups: comp.os.msdos.misc Subject: Re: More than 4 com-ports under Ms-dos 5.0?? Message-ID: <1992Oct28.051136.355@netcom.com> Date: 28 Oct 92 05:11:36 GMT Article-I.D.: netcom.1992Oct28.051136.355 References: <1992Oct27.160957.2524@abo.fi> Organization: Netcom - Online Communication Services (408 241-9760 guest) Lines: 40