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From: davel@booboo.SanDiego.NCR.COM (David Lord)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Memory Questions on a Tandy (yeech)
Message-ID: <1991Mar22.001541.10254@SanDiego.NCR.COM>
Date: 22 Mar 91 00:15:41 GMT
References: <1991Mar20.143739.4549@nmt.edu>
Sender: @SanDiego.NCR.COM
Reply-To: davel@booboo.SanDiego.NCR.COM (David Lord)
Organization: NCR Corporation, Rancho Bernardo
Lines: 21

In article <1991Mar20.143739.4549@nmt.edu> wombat@nmt.edu (Lily-Rose) writes:
>Okay, another stupid question.  I am working on a Tandy 1000 that
>claims to have 640K of memory.  However, when I try to run my 
>application (which requires 640K), I am told it doesn't have
>enough memory.  When I run Norton's System Info, it tells me
>that I have 112K in DOS and "other memory resident programs" 
>(which I cannot locate nor disable) and 464K available.  This
>totals 576K, which ain't 640K.  Elsewhere in SI, however, I am
>told that I have 640K of active memory.

While I can't explain the 'missing' memory, the 464K available is just
about what you get when you run DOS 4.01 in 'Memory Hog' mode (i think
Microsoft uses a different name for it). According to the DOS manual this
speeds things up and still leaves plenty of room for your applications :-).

If you are running 4.01 you may want to re-install it in slow-poke mode,
that should give you another 100k to play with. It's impossible using
MS DOS to give your application 640K since DOS will always take up some
room. The bad news is that the only way that I know of to change modes
is to re-install from the original DOS disks (can you say "Backup your
system first"?). Maybe someone else knows a better way?