Re: LOGO-L> Is Logo old technology?

["Bill Kerr" <kerrb@senet.com.au>]

>By the way, is there a MicroWorlds manual on the web somewhere?


I think you can download a demo copy of MW, with manual, from
www.microworlds.com

>To me, and many others, the essence of the idea of an object is that it
>joins local data and behavior. You ask a object to move and whether it
>walks, swims, or flies depends upon the kind of object it is and what
"move"
>methods have been associated with it. "turtlesown" does give objects some
>local data (but it is odd that every object in the system has the same set
>of local variables). But behavior is critical. (I don't happen to think
>inheritance is critical, though it is often quite nice.)


I sort of understand what you are getting at. From my Java course I recall
that this is called polymorphism.

I'll have to wait until I have some more time for a closer look at ToonTalk
to  try to evaluate your comments on both data synchronization and aspects
of OOPs that ought to be incorporated into kids software. Thanks for the
prompt responses to my queries.
-- Bill Kerr

---------------------------------------------------------------
Please post messages to the Logo forum to logo-l@gsn.org.  Mail
questions about the list administration to logofdn@gsn.org.  To
unsubscribe send    unsubscribe logo-l    to majordomo@gsn.org.