Mechanical computers may not oversee today’s automated tasks, but it’s still possible to build your own using literal ...

A childhood construction toy has been transformed into a working 8-bit mechanical computer that can perform real math.

One man is building a working computer inside the game that runs on his computer. ... In this video he demonstrates a city-sized, fully-functional arithmetic logic unit, or ALU.

Normally they handle bitwise operations, add, subtract, multiply, divide, etc. but in this case he made a simplified ALU that only does addition or bitwise AND (&) of two 16-bit operands.