When it works, it runs forth, a programming language: from wikipedia
“Although not as popular as other programming systems, Forth has enough support to keep several language vendors and contractors in business. Forth is currently used in boot loaders such as Open Firmware, space applications,and other embedded systems. Gforth, an implementation of Forth by the GNU Project, is actively maintained, with its most recent release in December 2008. The 1994 standard is currently undergoing revision, provisionally titled Forth 200x.“
Unfortunately, it did not work once it was completed.
Fault finding is now required, but we haven’t found a circuit diagram for it yet.