Universal Computer-constructor
Codd designed a self-replicating computer in the cellular automaton, based on Wang's W-machine. However, the design was so colossal that it evaded implementation until 2009, when Tim Hutton constructed an explicit configuration. There were some minor errors in Codd's design, so Hutton's implementation differs slightly, in both the configuration and the ruleset.
Read more about this topic: Codd's Cellular Automaton
Famous quotes containing the word universal:
“The universal regard for money is the one hopeful fact in our civilisation. Money is the most important thing in the world. It represents health, strength, honour, generosity and beauty.... Not the least of its virtues is that it destroys base people as certainly as it fortifies and dignifies noble people.”
—George Bernard Shaw (1856–1950)