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From: | Jim Van Nuland <jvn AT svpal DOT org> |
Newsgroups: | comp.os.msdos.4dos,comp.os.msdos.apps,comp.os.msdos.desqview,comp.os.msdos.djgpp,comp.os.msdos.mail-news |
Subject: | Re: regarding dos 640kb barrier |
Date: | Wed, 6 Aug 2003 07:14:32 +0000 (UTC) |
Organization: | Silicon Valley Public Access Link |
Lines: | 22 |
Message-ID: | <bgq9so$2d5q$1@borg.svpal.org> |
References: | <f88a27e4 DOT 0307300042 DOT 5b60b7fe AT posting DOT google DOT com> |
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NNTP-Posting-Date: | Wed, 6 Aug 2003 07:14:32 +0000 (UTC) |
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To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
Reply-To: | djgpp AT delorie DOT com |
In comp.os.msdos.desqview yogesh <ypjofficial AT indiatimes DOT com> wrote: > hi all!! > i have one question whose convincing answer i couldn' find in any > book. > everybody knows that dos has 640kb barrier..and hence this makes dos > inefficient... > my question is if dos is such a weak operating system..then why > somebody like microsoft(creater of ms dos)didn't redesigned dos so The 640k limit was invented by IBM; Microsoft adapted an earlier operating system to IBM's hardware. At that time (1980) the Apple II was coin of the home computer realm, and a Really Big one had 64 kilobytes of memory. So IBM's people multiplied that by 10, and (at the time) it was Amazingly Big. Little did anyone know. BTW, 4 years later the first Mac had (drum roll) 64 kb of memory! -- Jim Van Nuland, San Jose (California) Astronomical Association
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