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From: jgd@cix.co.uk (John Dallman)
Newsgroups: comp.arch
Subject: Re: Address bits again, Article on new mainframe use
Date: Thu, 12 Sep 2024 22:33 +0100 (BST)
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In article <20240912141925.000039f3@yahoo.com>, already5chosen@yahoo.com
(Michael S) wrote:

> x86 Real mode segmentation is a hack to the address space. 80286
> protected mode segmentation is something else. The only similarity
> between the two is maximal size of segment is the same.

Yup. 80286 segmentation is horribly complicated as compared to real mode,
and still gives you tiny segments. The only widespread OS that used it
AFAIK was OS/2 1.x, much to its disadvantage. IBM's insistence that OS/2
run on the 286 was a world-shaping mistake. 

386 mode was far more useful, and survives to the present day. 

John