> On 28.10.2015, at 02:35, Jecel Assumpcao Jr. <jecel at merlintec.com> wrote:
> 
> Bert Freudenberg wrote on Mon, 26 Oct 2015 00:51:55 +0100:
>>> On 24.10.2015, at 19:15, tim Rowledge wrote:
>>>> On 23-10-2015, at 11:28 AM, marcel.taeumel  wrote:
>>>> 
>>>> The image looks like the 1.1 on our FTP (http://ftp.squeak.org/1.1/) but it
>>>> will not open with the Windows VM from then. Was the image format somewhat
>>>> different between Windows/Mac back then?
>>> 
>>> No, the image *format* was the same but the image was originally pretty solidly
>>> Mac specific until Andreas added support for Windows, Ian added it for *nix and
>>> I added it for RISC OS. It?s possible that image you have there simply predates
>>> any of that.
> 
> Wasn't one of your RISC OS additions the ability to load images saved in
> the opposite "endian"? I would guess that any VMs (Mac, Windows and
> Unix) before that would be more picky about what images they could load,
> though a newer VM could easily be used to create the needed image.

I thought Ian created that … we should write up an article about the early community history of Squeak.

>> The image on the website is 1.1w meaning it has the WindowsFileDirectory class
>> which is needed to make it work on the Windows VM (it supports Mac and Windows).
>> IIRC it lacks the UnixFileDir though (those are labeled ?...u?).
>> 
>> John?s image only has MacFileDirectory, so I think this is actually the oldest released
>> image found so far, and we should put it on the website.
>> 
>> Would be fun if someone looked at the changes file time stamps to reconstruct the
>> evolution of early Squeak images ...
> 
> The first image I ever saw was 1.13 until the relicensed 1.1 was
> released about 10 years later. I think that individual methods didn't
> have timestaps before 2.2 or so, but all the times the image was saved
> would be indicated in the .changes files and that should be good enough.
> It might even be possible to continue tracing back the evolution to the
> Apple Smalltalk and then Xerox Smalltalk this way.

I have a pre-release Squeak image from May 20 1996 (image format version 6501) but I’m not entirely sure of its licensing status …

- Bert -



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