Hi james,

Thanks for grabbing that one !   I was going to say that !
Also Wasn't Qemm produced to overcome the 640K barrier because the DOS 
one was so poor ?

On Wednesday 18 January 2006 17:14, James Button wrote:
> Re: > So why wasn't the 86 capable of accessing 1Mb ram
>
> It was.
>
> There was(is)  a 640Kb limit in the DOS/Windows 3 'native addressing'
> structure/management mode
> same sort of thing as the current limit on usable memory within XP of
> 3Mb and 4Gb
>
> Any memory above that limit had to be addressed as extended memory,
> using additional 'drivers'
> so originally it was used for ramdisk,
> then as 'highmem'  for holding some modules
> Then utilities such as Sidekick
> Then used by some modules of office type packages
> etc.
>
> JimB
>
> ----- Original Message -----
> From: "Hugh Gundersen" <[EMAIL PROTECTED]>
> To: <[email protected]>
> Sent: Wednesday, January 18, 2006 4:53 PM
> Subject: Re: Brief History of IBM PCs (WAS RE: Mobo caps - again!)
>
>
> <<Hack>>
>
> >As far as I remember the 80186 was produced as an embeded processor
> > and was an 8086 in a square package and not a DIL package.
>
> So why wasn't the 86 capable of accessing 1Mb ram

> <<Hack>>
>
>
> Sir Hugh of Bognor

-- 
Best Regards:
     Derrick.
     Pontefract Linux Users Group.
     plug at play-net.co.uk

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