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Re: [vox-tech] definition of a virtual machine
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Re: [vox-tech] definition of a virtual machine



On Monday 31 March 2003 05:16 pm, Rod Roark wrote:
> On Monday 31 March 2003 04:59 pm, Peter Jay Salzman wrote:
> > ...  the intended
> > audience are readers of the linux gamers' howto who want to know what
> > things like vmware are.  not people taking a course on java.   :)
>
> OK how about this.  I remember a placard with this on it,
> sitting on a demo S/370 mainframe when IBM first introduced
> "virtual memory" (we now just call it "swap space"):
>
>   If it's there and you can see it, it's real.
>
>   If it's there and you can't see it, it's invisible.
>
>   If it's not there and you can see it, it's virtual.
>
>   If it's not there and you can't see it, it's gone.
>
> :-)
>
> For what it's worth I think of a virtual machine as one
> that's emulated in software.

Rod - this is awesome!  Thanks for a laugh.  I might now be able to
explain virtual memory to a few family members...

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