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Alan,<br>
I remember being told that the ST-76 image was cloned from the ST-72
image by transferring the ST-72 objects (using VMWriter?). So my
current squeak image is a direct descendant of ST-72 because there has
been no start from scratch with an empty image.<br>
<br>
Not one of the cells I was born with 77 years ago exist today. Still --
I'm still me. By the same token, I believe Squeak as a living thing was
born as the ST-72 image and is still going strong. <br>
<br>
Cheers<br>
--Trygve<br>
<br>
On 19.05.2007 19:36, Alan Kay wrote:
<blockquote cite="mid7.0.1.0.2.20070519102958.06aef7f8@squeakland.org"
type="cite">Dan and I have joked that there is probably at least one
line of code I
wrote for class Paragraph still there. (I did the original version in
ST-72 -- a one -pager -- but it has been added to and etc., many times
since by others.) <br>
<br>
However, there is quite a bit of code still in Squeak from the
Smalltalk-80 release version that went to various companies, including
Apple before the Blue Book was written. And at least some of that was
in
ST-76, the original version of which was pretty much designed and
written
by Dan (the other three contributors for that implementation were Ted
Kaehler, Diana Merry, and Dave Robson). Larry Tesler soon afterwards
added the first of the code browsers, etc.<br>
<br>
Cheers,<br>
<br>
Alan<br>
<br>
At 10:09 AM 5/19/2007, Brad Fuller wrote:<br>
<blockquote type="cite" class="cite" cite="">subbukk wrote: <br>
<blockquote type="cite" class="cite" cite=""><br>
<pre>On Friday 18 May 2007 11:02 pm, Craig Latta wrote:
</pre>
<blockquote type="cite" class="cite" cite="">
<blockquote type="cite" class="cite" cite=""><br>
<pre>not forgetting of course that Squeak was announced in september(?)
96
</pre>
</blockquote>
<br>
<pre> midnight pacific time, 1 October 1996.
</pre>
</blockquote>
<br>
<pre>Is the birth date of Squeak Virtual machine or the Squeak Image?
Though Squeak
was released in '96, some of the objects in its image must have been
created
long before that. Is there a way to find out the oldest extant object in
an
image?
</pre>
</blockquote>
According to
Dan's "Back to the Future" article, the team started with
an Apple Smalltalk-80 implementation which contained the image and VM.
Maybe there is still some code from ST-80.<br>
<br>
brad</blockquote>
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</blockquote>
<br>
<br>
<pre class="moz-signature" cols="72">--
Trygve Reenskaug mailto: <a class="moz-txt-link-abbreviated" href="mailto:trygver@ifi.uio.no">trygver@ifi.uio.no</a>
Morgedalsvn. 5A <a class="moz-txt-link-freetext" href="http://folk.uio.no/trygver">http://folk.uio.no/trygver</a>
N-0378 Oslo Tel: (+47) 22 49 57 27
Norway
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