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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I kind of like the idea of suspended
animation, or suspension, but there must be better terms that convey this.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>- Dave W<o:p></o:p></span></font></p>
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10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
vwnc-bounces@cs.uiuc.edu [mailto:vwnc-bounces@cs.uiuc.edu] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Eliot Miranda<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, March 12, 2010 11:05
AM<br>
<b><span style='font-weight:bold'>To:</span></b> Bruce Boyer<br>
<b><span style='font-weight:bold'>Cc:</span></b> vwnc NC; Pharo Development;
The general-purpose Squeak developers list<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [vwnc] image overload</span></font><o:p></o:p></p>
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12.0pt'><o:p> </o:p></span></font></p>
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face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On Fri, Mar 12, 2010 at 10:51 AM, Bruce Boyer <<a
href="mailto:bruce.boyer@alumni.uci.edu">bruce.boyer@alumni.uci.edu</a>>
wrote:<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>This is rather a sensitive area with me at the moment, as I'm
working on indexing docs. I've had to resort to using "image"
and "graphical image" to try to distinguish these two, but
"image" remains unclear to anyone who doesn't already know.</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I could guess that the term "snapshot" came first,
as a methaphorical attempt to describe what saving that thing is, and
"image" is what snapshots give (or pictures or something even worse
for that thing). But, it's only a guess.</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Right. That's why I don't like either snapshot or image.
What are these snapshots or images of? They are intentionally
abstract terms and are unhelpful. Yes, snapshot is much better, but still
hopelessly abstract.<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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margin-left:4.8pt;margin-right:0in'>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>If a really good term were proferred, the documentation cost
will be amortized over a long period of time, so not a worry. Getting it
accepted by smalltalkers will be the harder problem.</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I'm not sure, though, that "system file" is
right. The file part is just an artifact of saving the state of the
system, providing a way to preserving it for a restart. </span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>But I see a snapshot file are more than just a memory dump. It
/is/ the entire Smalltalk system, class library, potentially compiler,
debugger, tools. It is in a format that requires the virtual machine to
run it, but it is in fact the Smalltalk system in quiescent form. It is
not a memory dump. It is only a dump of the Smalltalk object heap, not
the entire memory space.<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>It is more than just a way of saving the state. It is also a way
of moving that state and resuming it on a different system. Once you have
the virtual machine key you can unlock the image, uh, system, but everything
you need to program the system (beyond execution display and input devices) is
there.<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><span class=apple-style-span><font size=3 face=Arial><span
style='font-size:12.0pt;font-family:Arial'>Is there a recognizable term for the
state of memory at a moment? Cognitive scientists might have something,
though I'm sure it would be hugely debated whether there is any such thing.</span></font></span><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>I forget...<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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margin-left:4.8pt;margin-right:0in'>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Waste of time? Perhaps. But, beats indexing :)</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Bruce</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>----- Original Message ----- <o:p></o:p></span></font></p>
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<p class=MsoNormal style='background:#E4E4E4'><b><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial;font-weight:bold'>From:</span></font></b><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> <a
href="mailto:eliot.miranda@gmail.com" target="_blank"
title="eliot.miranda@gmail.com">Eliot Miranda</a> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><b><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial;font-weight:bold'>To:</span></font></b><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'> <a
href="mailto:squeak-dev@lists.squeakfoundation.org" target="_blank"
title="squeak-dev@lists.squeakfoundation.org">The general-purpose Squeak developers
list</a> ; <a href="mailto:pharo-project@lists.gforge.inria.fr" target="_blank"
title="pharo-project@lists.gforge.inria.fr">Pharo Development</a> ; <a
href="mailto:vwnc@cs.uiuc.edu" target="_blank" title="vwnc@cs.uiuc.edu">vwnc NC</a>
<o:p></o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial;font-weight:bold'>Sent:</span></font></b><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'> Friday, March 12,
2010 9:59 AM<o:p></o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial;font-weight:bold'>Subject:</span></font></b><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'> [vwnc] image
overload<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Hi All, <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> I'm sure Im opening an old topic but anyway, as I
was riding the train to work today I saw a shop called "Audio Images"
and it struck me how overloaded the term image is, and how poor a term for the
contents of the image file Smalltalk image is. What's in the image is a
snapshot of... almost the entire system (minus platform-specific virtual
machine and possibly minus sources). So Smalltalk system file would be a
far better term and stsys a more unique file extension (and according to
Wikipedia STS is unused too). I can imagine that changing form image
would be hugely expensive in documentation terms (docs, websites, workspaces,
etc, etc). But I can at least dream of a better term.<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>P.S. I know, wasting one's time worrying about names.
Almost as bad as worrying about colours<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=1 face=Arial><span style='font-size:8.0pt;
font-family:Arial'>"And the wheel," said the Captain, "What
about this wheel thingy? It sounds a terribly interesting project."<br>
"Ah," said the marketing girl, "Well, we're having a little
difficulty there."<br>
"Difficulty?" exclaimed Ford. "Difficulty? What do you mean,
difficulty? It's the single simplest machine in the entire Universe!"<br>
The marketing girl soured him with a look.<br>
"Alright, Mr. Wiseguy," she said, "if you're so clever, you tell
us what colour it should be."</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>_______________________________________________<br>
vwnc mailing list<br>
<a href="mailto:vwnc@cs.uiuc.edu" target="_blank">vwnc@cs.uiuc.edu</a><br>
<a href="http://lists.cs.uiuc.edu/mailman/listinfo/vwnc" target="_blank">http://lists.cs.uiuc.edu/mailman/listinfo/vwnc</a><o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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