Re: LOGO-L> STOP and STOPME

[KERRB@Magill.UniSA.edu.au]

Yehuda wrote in reply to Augusto:-

>I know absolutely nothing about MicroWorlds, so sorry for asking what
>might be trivial for you:

>I don't understand what you mean by "process". Do you mean "procedure"?

I suppose the new word "process" comes from the fact that MicroWorlds does 
emulate parallel processing. MicroWorlds launches independent processes. eg. 
click on a button to make a song play, then on a turtle to make a bird fly.

>You say that MW runs paralelly several "processes". How is it that done
>on a single-processor computer?

I don't know the technical details of how it is done but I think its a major 
improvement. Its more like real life. We walk down the street and hum a song at 
the same time in real life, naturally without thinking about it. MicroWorlds 
allows us to emulate that on the computer.

>Do you think that in MW, STOPME is an essential command and normally one
>can't do without it?

Here is a simple case that arose from the work of a year 9 student the other 
day. He had a bird flying and the man walking simultaneously. He wanted the 
man to stop when he reached a tree and the bird to keep on flying. He 
programmed the colour brown (tree trunk) with stopme and made sure the bird 
didn't fly through any brown. It was useful and easier than other ways.

--- Bill Kerr

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