Article View: comp.sys.ibm.pc.misc
Article #2551Re: Extended and Expanded memory
From: roger.h.levy
Date: Sat, 18 Aug 1990 11:00
Date: Sat, 18 Aug 1990 11:00
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In article <26045@bellcore.bellcore.com>, wind@rruxi.bae.bellcore.com (Wind Chen) writes: > LIM 3.2 and LIM 4.0 are two different thing, they are not compatible. > To use LIM 4.0, you will need hardware support, if you EMS board didn't say it > supports LIM 4.0, chances are, it does NOT support. Yes they are different but most of the rest is untrue. From the Waite Group's MSDOS Developer's Guide: The user does not have to buy any new hardware to use applications that are written to the LIM EMS 4.0 specification. Older expanded memory boards designed for the LIM EMS 3.2 specification can support the 4.0 specification - the manufacturer just has to write a new EMM to implement the 4.0 function calls. Established manufacturers such as AST do just this sort of thing. Also, the LIM 3.2 function calls exist in LIM 4.0 but 4.0 has more of them. I would call that "upward compatible" rather than "not compatible."
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arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!mailrus!usenet.ins.cwru.edu!tut.cis.ohio-state.edu!rutgers!att!cbnewsl!rlReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!mailrus!usenet.ins.cwru.edu!tut.cis.ohio-state.edu!rutgers!att!cbnewsl!rl From: rl@cbnewsl.att.com (roger.h.levy) Newsgroups: comp.sys.ibm.pc.misc Subject: Re: Extended and Expanded memory Summary: LIM 4.0 not dependent on HW Message-ID: <1990Aug18.110025.28644@cbnewsl.att.com> Date: 18 Aug 90 11:00:25 GMT References: <26045@bellcore.bellcore.com> Distribution: usa Organization: AT&T Bell Laboratories Lines: 17