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:
“Eddie did not die. He is no longer on Channel 4, and our sets are tuned to Channel 4; hes on Channel 7, but hes still broadcasting. Physical incarnation is highly overrated; it is one corner of universal possibility.”
—Marianne Williamson (b. 1953)