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Hi All,
At the last PNLTC GATS (train show) I used the LEGO controll lab using logo to
controll a simple trolley line. Perhaps being a brute force EE and now fully
brain washed into the MSFT way of event programming, logo is very strange to
me. It could be the apple UI cast on to the PC and the really bad editor...
From the little I have seen of the RCX drag and drop there seems to be a
simularity.
SteveB
URL for the direct www.pnltc.org page for the trolly. Sorry about the text
wrap on the URL.
http://www.pnltc.org/Gal_PDX_GATS_Q199/trolley%
20SEB/Gal_PDX_GATS_Q199_Steve.html
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Chris Phillips wrote in message ...
> Dr. Pappert, as you may know, was also a major influence in the • development of
> the Lego Mindstorms system. Though I have never met the man, I also • credit
> him indirectly with introducing me to computers and what has become a very
> enjoyable carreer.
Not only have I never met Dr. Papert, but I also never learned how to
spell his name!
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[crossposted to lugnet.robotics & lugnet.robotics.logo;
followups set to lugnet.robotics.logo]
In lugnet.robotics.logo, Patricia Schempp writes:
> I might be being silly here...but is this logo the same logo I used on
> my Apple IIe to make silly pictures in 1980?
There are actually many dialects of Logo (which some say is itself a dialect
of Lisp). Some of these implementations are heavily display-screen-based
like the one you probably used in 1980 on the Apple //e, and others are more
robotics-focused (for hobby/enthusiast as well as educational uses).
Logo got sort of a bad reputation, unfortunately, during the 80's, and
labeled as a "kids" programming language. But it is actually an extremely
powerful language (just as Lisp is) which just happens to be easy for
children to learn (but that's actually by design :-).
The Logo Foundation...
http://el.www.media.mit.edu/logo-foundation/
has an excellent "What is Logo?" page...
http://el.www.media.mit.edu/logo-foundation/Logo/Logo.html
which gives a history of Logo, a FAQ, and links to zillions of other Logo
resources, including information on LEGO/Logo (a system specially designed
for linking Logo with LEGO):
http://el.www.media.mit.edu/groups/el/projects/legologo/
The version of the comp.lang.logo FAQ linked to from the "What is Logo?"
page mentions the availability of LEGO/Logo from LEGO DACTA, which several
people here on the net have had experiences with.
There has been a surprising amount of interest in Logo as it relates to LEGO
robotics over the past few months. The following search...
http://www.lugnet.com/robotics/?q=logo
...turns up quite a bit of interesting material, including:
http://www.lugnet.com/robotics/?n=3264
http://www.lugnet.com/robotics/?n=1981
http://www.lugnet.com/robotics/?n=2466
http://www.lugnet.com/robotics/?n=5016
http://www.lugnet.com/robotics/?n=225
http://www.lugnet.com/robotics/?n=942
http://www.lugnet.com/robotics/?n=111
http://www.lugnet.com/robotics/?n=3508
http://www.lugnet.com/robotics/?n=974
--Todd
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Patricia Schempp wrote in message <37850E38.5EA46609@clemson.edu>...
> I might be being silly here...but is this logo the same logo I used on
> my Apple IIe to make silly pictures in 1980?
I believe it is. I actually wrote my first computer program when I was
in 7th grade as a visitor to MIT's Artificial Intelligence laboratory in the
research labs of Dr. Seymour Pappert who created the logo language. Dr.
Pappert, as you may know, was also a major influence in the development of
the Lego Mindstorms system. Though I have never met the man, I also credit
him indirectly with introducing me to computers and what has become a very
enjoyable carreer.
The most memorable feature of logo is that it uses a "turtle" to draw
graphics on screen. The program tells the turtle to move forward or back,
and turn left or right. The turtle draws a line wherever it goes unless the
program tells it to raise its pen or lower its eraser. Traditional logo is
built on top of the Lisp programming language, although turtle graphics
support has been grafted onto other programming languages as well.
At the AI lab, they also had floor turtles that were simple, domed,
2-wheeled robots that could raise or lower a ball point pen to draw designs
on paper laid out on the floor. The MIT floor turtles were the mental model
that I used for my very first RIS creation some 22 years later. (Oops, I
just dated myself there, now, didn't I?)
What I want to know is, where is this logo compiler for the RIS? I
assume there wouldn't be a forum if there wasn't a platform...
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