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From: mig@cunixb.cc.columbia.edu (Meir)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Device Driver or TSR?
Message-ID: <1991May10.054812.16312@cunixf.cc.columbia.edu>
Date: 10 May 91 05:48:12 GMT
References: <1991May7.163424.20942@midway.uchicago.edu>
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Reply-To: mig@cunixb.cc.columbia.edu (Meir)
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In article <1991May7.163424.20942@midway.uchicago.edu> mss2@quads.uchicago.edu (Michael S. Schiffer) writes:
>Many device driver and similar programs seem to come in two forms:
>A TSR .com file and a .sys device driver to be placed in config.sys.
>I was wondering if someone would explain to me why they come in two
>flavors, and which is preferable.  (Or if one is preferable for one use,
>and one for another, please elaborate.)
>
>And as long as I'm asking Naive Beginner Questions (tm), do people
>generally define their hard drives as many, few, or one logical drive,
>and why?
>
>Mike
>-- 
>Michael S. Schiffer, LHN	"Well, _I_ believe in solipsism--
>aq578@cleveland.freenet.edu	 but that's just one man's
>Mike_Schiffer@ub.cc.umich.edu	 opinion."  -- Craig Neumeier, LHN
>mss2@usite-next.uchicago.edu

In my humble opinion, a .COM can be loaded after bootup and aded later,
whereas a .SYS can only be loaded AT bootup and cannot be unloaded at all.
.SYS files usually take up less memory (they are smaller) but probably cannot
be moved to high memory, if your system is capable of that.

Hmm.  There.  I said it.  Please correct any errors or misleading statements
I might have made.

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