Commissioned by Paris Science Museums, this first prototype was made to test boundaries of a fully functionnal computer operating with marbles. Speed and reliability were the main focus, while exploring design and manufacturing techniques. 
The OAB had to perform simple logic operations only by mechanical means. The control was done electronically in this version, the next one will aim  at a mechanical way to operate the system. 
The marbles represents the binary logic, made of 0 and 1.

Different tests filmed in the making for documentation and evaluation of the components in action. We also used slow motion to monitor marbles behavior and fix some “bugs”.