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My Latest Computer is... 4-bit.

stingraze Page Icon Posted 2022-05-28 9:02 AM
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So I went to an used bookstore today, and I found a 4-bit Micro Computer Kit with a Magazine.
The name is GMC-4.

You have to punch in the keys to program this tiny computer like you did before I was born.
It was produced in 2009, but it still works!
I tried some sample programs etc.

Here's a video of it in action:


Edited by stingraze 2022-05-28 9:03 AM




(gmc-4-small.jpg)



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NarakuITA Page Icon Posted 2022-05-28 10:14 AM
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Interesting, but what exactly do you do with it?
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Mjolnir Page Icon Posted 2022-05-28 10:33 AM
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Nice - I find myself watching assembly in action at 4:30 AM while drinking my first cup of coffee, lol.
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C:Amie Page Icon Posted 2022-05-28 10:47 AM
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Well at least they didn't sell you a 2-bit computer .

It seems to make a lot of noise... but what else does it do?
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stingraze Page Icon Posted 2022-05-28 11:23 AM
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It's a programmable kit, and you have to put in command codes (in assembly). You can create quite a lot of programs, but I don't know if it's Turing complete or not, lol.

There are a few programs written in the IC, and you can play "tennis" with the LEDs above.

It seems it's kind of popular (was?) in Japan and there are even sites dedicated to this.

Programming the Gakken GMC-4 Microcomputer
http://tsoj.manga.org/gakken/otona_gmc.html

Gakken Gmc-4: 4-Bit Microcomputer Kit Won’T Play Crysis (blog)
https://technabob.com/blog/2009/10/22/gakken-gmc-4-bit-microcomputer...

GMC-4 Compiler
http://www.pwv.co.jp/~take/TakeWiki/index.php?GMC-4%E3%82%B3%E3%83%...

Edited by stingraze 2022-05-28 11:30 AM
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