The K’NEX computer

Computers & Mobile
The K’NEX computer

Calculator Small
Wow, these students are trying to build a computer completely out of K’NEX parts, here’s a calculator…

The K’NEX calculator stands over 10 feet tall, and can perform 4 bit addition and subtraction operations in about 30 seconds. The slowest part of the operation is the user entering the balls. From there the balls trickle down, computing the result of the operation, and then sending that through a 4 bit decoder, which flips a flag that tells the user the answer. Since it is 4 bit, we can add and subtract numbers from 0 to 15.

The K’NEX computer – Link.

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