Squeak is derived from ST-80 release 1, which was shipped to hardware vendors like Apple. The system has evolved gradually over time. There have been a lot of improvements, and a lot of cruft built up too. I don't know of a crib sheet of differences between Squeak and ST-80, but there is a good crib sheet for Squeak, it's called *Terse Guide to Squeak*. It's in the help menu in recent Squeak images, and also here:

http://wiki.squeak.org/squeak/5699

On Sat, Dec 24, 2011 at 11:36 AM, Alan Gauld alan.gauld@btinternet.comwrote:

I'm working through a fairly ancient intro to Smalltalk-80 called "Smalltalk-80 A Practical Introduction" by Philip Gray.

A lot of the methods that Gray uses don't exist in quite the same form in my Squeak (3.9 under Ubunto 10)(*).

I can generally figure it out eventually by studying the browser, but I understood Squeak started out as a clone of the original ST-80? So I wondered where/when the differences came in. And also if there is a crib sheet of what the differences are? (Which would save me some time!)

BTW I've also been using SBE but I wanted to try the examples in the Gray book just for fun...

(*)An example is in PopUpMenu where Gray uses a "reset" message which doesn't seem to exist in Squeak. He also uses a "startUpWithHeading:" which is "startUpWithCaption:" in Squeak.

-- Alan G Author of the Learn to Program web site http://www.alan-g.me.uk/

______________________________**_________________ Beginners mailing list Beginners@lists.**squeakfoundation.orgBeginners@lists.squeakfoundation.org http://lists.squeakfoundation.**org/mailman/listinfo/beginnershttp://lists.squeakfoundation.org/mailman/listinfo/beginners