Article View: comp.sys.ibm.pc
Article #8706Re: 640K limit
From: Andrew MacRae
Date: Tue, 16 Jan 1990 20:03
Date: Tue, 16 Jan 1990 20:03
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1256 bytes
In article <28808@amdcad.AMD.COM> phil@pepsi.AMD.COM (Phil Ngai) writes: >Don't be ridiculous. The 8088 can't ADDRESS more than 1 mega. Just where >did you expect IBM to put the IO stuff? > >The problem is all the lazy software houses who haven't bothered to move >to OS/2 and take advantage of the 16 meg protected mode even though the >286 can handle it just fine. Simple. IBM/MicroSoft *should* have used soft pointers to the I/O memory areas. They made the same mistake that was made with CP/M, hardcoding areas of memory for specific uses. For those who don't remember, CP/M was hardcoded so that the kernal *had* to reside in the top 4kb of a 64kb address space, forever limiting its applications to 60kb in size.
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arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!snorkelwacker!apple!sun-barr!newstop!jethro!grendal!acmReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!snorkelwacker!apple!sun-barr!newstop!jethro!grendal!acm From: acm@grendal.Sun.COM (Andrew MacRae) Newsgroups: comp.sys.ibm.pc Subject: Re: 640K limit Message-ID: <729@jethro.Corp.Sun.COM> Date: 16 Jan 90 20:03:09 GMT References: <4668.25aed7f2@uwovax.uwo.ca> <1468@blackbird.afit.af.mil> <28808@amdcad.AMD.COM> Sender: news@jethro.Corp.Sun.COM Reply-To: acm@sun.UUCP (Andrew MacRae) Organization: Sun Microsystems, Mountain View Lines: 13