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:
“I admit that the generation which produced Stalin, Auschwitz and Hiroshima will take some beating; but the radical and universal consciousness of the death of God is still ahead of us; perhaps we shall have to colonize the stars before it is finally borne in upon us that God is not out there.”
—R.J. Hollingdale (b. 1930)