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Groups > comp.os.msdos.programmer > #307

Re: What role does "DOS" play in Windows 95/98?

From "Klaus Meinhard" <K_Meinhard@gmx.de>
Newsgroups comp.os.msdos.programmer, comp.os.msdos.misc, alt.msdos
Subject Re: What role does "DOS" play in Windows 95/98?
Date 2011-10-19 10:07 +0200
Message-ID <9g7g4kFvu6U1@mid.individual.net> (permalink)
References <4E9B5A53.392C9558@Guy.com> <j7hm5v$2rt$1@rumours.uwaterloo.ca> <4E9CBE49.C89ADE01@Guy.com> <9g4m4qFfqcU1@mid.individual.net> <4E9D7B33.D82B93C3@Guy.com>

Cross-posted to 3 groups.

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Hallo DOS Guy,

> No.  It's more like Win-9x is boot-loaded by DOS.
>
> I could just as easily say that Windows NT "runs on top of" it's
> boot loader.  That is equally true according to your definition of
> "runs on top of" - but it's not a useful statement.

You should try to read the Wikipedia entry 
<en.wikipedia.org/wiki/Windows_95>

<Quote>

To end-users, MS-DOS appeared as an underlying component of Windows 
95. For example, it was possible to prevent loading the graphical user 
interface and boot the system into a real-mode MS-DOS environment. 
This sparked debate amongst users and professionals over the question 
of to what extent Windows 95 was an operating system or merely a 
graphical shell running on top of MS-DOS. From an architectural 
stance, both viewpoints lack nuance.

When the graphical user interface was started, the virtual machine 
manager took over the filesystem-related and disk-related 
functionality from MS-DOS, which itself was demoted to a compatibility 
layer for 16-bit device drivers.[14] This contrasted with earlier 
versions of Windows which relied on MS-DOS to perform file and disk 
access. (Windows for Workgroups 3.11 could also largely bypass MS-DOS 
when 32-bit file access and 32-bit disk access was enabled.) Keeping 
MS-DOS in memory allowed Windows 95 to use DOS device drivers if 
suitable Windows drivers were unavailable. MS-DOS also still handled 
most other functions (for example, allocating memory and parsing file 
names), issued by legacy Win16 and DOS applications, as Microsoft saw 
little benefit in replacing these helper functions with newly-written 
32-bit code.[14]

<Unquote>


-- 
Best regards,

*  Klaus Meinhard  *
<www.4dos.info>

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Thread

What role does "DOS" play in Windows 95/98? DOS Guy <DOS@Guy.com> - 2011-10-16 18:27 -0400
  Re: What role does "DOS" play in Windows 95/98? Trifle Menot <triflemenot@beewyz.com> - 2011-10-16 23:38 +0000
  Re: What role does "DOS" play in Windows 95/98? "Rod Pemberton" <do_not_have@noavailemail.cmm> - 2011-10-17 05:16 -0400
    Re: What role does "DOS" play in Windows 95/98? "Klaus Meinhard" <K_Meinhard@gmx.de> - 2011-10-17 16:47 +0200
      Re: What role does "DOS" play in Windows 95/98? tomdzip <tomdzip@hotmail.com> - 2011-10-17 09:02 -0700
        Re: What role does "DOS" play in Windows 95/98? "Klaus Meinhard" <K_Meinhard@gmx.de> - 2011-10-18 08:42 +0200
      Re: What role does "DOS" play in Windows 95/98? "Rod Pemberton" <do_not_have@noavailemail.cmm> - 2011-10-17 13:34 -0400
        Re: What role does "DOS" play in Windows 95/98? DOS Guy <DOS@Guy.com> - 2011-10-17 16:43 -0400
          Re: What role does "DOS" play in Windows 95/98? Ross Ridge <rridge@csclub.uwaterloo.ca> - 2011-10-17 18:34 -0400
            Re: What role does "DOS" play in Windows 95/98? DOS Guy <DOS@Guy.com> - 2011-10-17 19:29 -0400
              Re: What role does "DOS" play in Windows 95/98? Ross Ridge <rridge@csclub.uwaterloo.ca> - 2011-10-17 20:36 -0400
                Re: What role does "DOS" play in Windows 95/98? DOS Guy <DOS@Guy.com> - 2011-10-17 21:36 -0400
                Re: What role does "DOS" play in Windows 95/98? Ross Ridge <rridge@csclub.uwaterloo.ca> - 2011-10-18 09:46 -0400
          Re: What role does "DOS" play in Windows 95/98? "Rod Pemberton" <do_not_have@noavailemail.cmm> - 2011-10-18 10:51 -0400
            Re: What role does "DOS" play in Windows 95/98? Ross Ridge <rridge@csclub.uwaterloo.ca> - 2011-10-18 13:49 -0400
  Re: What role does "DOS" play in Windows 95/98? Ross Ridge <rridge@csclub.uwaterloo.ca> - 2011-10-17 12:46 -0400
    Re: What role does "DOS" play in Windows 95/98? DOS Guy <DOS@Guy.com> - 2011-10-17 19:46 -0400
      Re: What role does "DOS" play in Windows 95/98? Trifle Menot <triflemenot@beewyz.com> - 2011-10-18 00:14 +0000
      Re: What role does "DOS" play in Windows 95/98? Ross Ridge <rridge@csclub.uwaterloo.ca> - 2011-10-17 20:56 -0400
      Re: What role does "DOS" play in Windows 95/98? "Klaus Meinhard" <K_Meinhard@gmx.de> - 2011-10-18 08:53 +0200
        Re: What role does "DOS" play in Windows 95/98? DOS Guy <DOS@Guy.com> - 2011-10-18 09:12 -0400
          Re: What role does "DOS" play in Windows 95/98? Jim Leonard <mobygamer@gmail.com> - 2011-10-18 07:03 -0700
          Re: What role does "DOS" play in Windows 95/98? "Klaus Meinhard" <K_Meinhard@gmx.de> - 2011-10-19 10:07 +0200
        Re: What role does "DOS" play in Windows 95/98? "Ant" <not@home.today> - 2011-10-19 01:26 +0100
          Re: What role does "DOS" play in Windows 95/98? "Klaus Meinhard" <K_Meinhard@gmx.de> - 2011-10-19 09:19 +0200

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