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Article #12458

Re: Def of a workstation (a lark)

#12458
From: Jon Mellott
Date: Thu, 07 Jan 1993 14:35
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In article <C0GJzC.GFJ@metaflow.com>, rschnapp@metaflow.com (Russ Schnapp) writes:
|> In article <1993Jan6.165640.2894@lsl.co.uk>, snail@lsl.co.uk writes:
|> |> On a workstation, software does not worry about how much memory it has; just
|> |> page it out to disk. Microsoft windows can release memory and re-read it from
|> |> the disk, but it can't page memory *out* to the disk (not unless it changed
|> |> recently).
|> 
|> Not terribly recently -- Windows 3.1 has fully virtual memory in
|> "enhanced mode".  (For some reason, they limit virtual memory to twice
|> the size of physical memory.)  I believe that 3.1 has been out for a
|> year or so.

Well, actually, Windows v3.0 has paged virtual memory in "386 enhanced mode". 
The "discardable segment" scheme of memory management where program and 
static resource segments are discarded to free memory and later re-read was 
there for 286 and lower machines. 

Jon Mellott
High Speed Digital Architecture Laboratory
University of Florida
(jon@alpha.ee.ufl.edu)
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Message-ID: <1993Jan7.143557.27636@eng.ufl.edu>
Path: arc1-ca.pugleaf.net!sparky!uunet!caen!spool.mu.edu!eng.ufl.edu!jon
References: <1993Jan3.052930.27869@wam.umd.edu> <1993Jan3.235327.13718@qb.rhein-main.de> <1993Jan6.165640.2894@lsl.co.uk> <C0GJzC.GFJ@metaflow.com>

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Path: arc1-ca.pugleaf.net!sparky!uunet!caen!spool.mu.edu!eng.ufl.edu!jon
From: jon@theta.ee.ufl.edu (Jon Mellott)
Subject: Re: Def  of a workstation (a lark)
Message-ID: <1993Jan7.143557.27636@eng.ufl.edu>
Originator: jon@theta.ee.ufl.edu
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Organization: EE Dept at UF
References: <1993Jan3.052930.27869@wam.umd.edu> <1993Jan3.235327.13718@qb.rhein-main.de> <1993Jan6.165640.2894@lsl.co.uk> <C0GJzC.GFJ@metaflow.com>
Date: Thu, 7 Jan 93 14:35:57 GMT
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