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Things you can do with forth, from the forth author:

http://www.greenarraychips.com/

which is actually a truly message-passing based arch with 144 clockless "cpus". Each cpu is actually so limited that forth is one of the few languages that makes programming this tricky platform viable.

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As multiple people have pointed out, GreenArray chips are basically TIS-100 IRL, but in Forth. Right down to the quirky design.

Never heard of TIS-100 (you mean http://www.zachtronics.com/tis-100/ ?)

Yes.

Worth playing; if you enjoy programming challenges within limited environments, you would be hard pressed to find better games than the Zachtronics set of games.

If I had time to spare, I'd actually order the development board. The architecture is unique and fascinating.

...What dev board? The GreenArrays one?

I'd love to think of something to do with GreenArrays, although AFAICT they're kinda dead. The idea is fascinating, but I honestly don't know what I would use it for.

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