"But it was not until World War II that the U.S. government began to unleash the true power of this technology, when our intelligence forces first employed computers to break enemy codes. Probably the most famous example concerns a top-secret cable sent from the Japanese military high command to Japan's ambassador in Washington on December 3, 1941. The cable, intercepted by U.S. agents, read: E-WAY ILL-WAY ATTACK-AY EARL-PAY ARBOR-HAY -TOKYO This cable was immediately fed into the U.S. War Department's top-secret code-breaking computer, code-named CODEBREAKER, which consisted of thousands of interconnected electronic switches, or "relays." Unlike human intelligence analysts, CODEBREAKER was able to work on the problem nonstop, 24 hours a day, never taking a coffee break (Although it did go to the bathroom four times), until finally, in March of 1944, it gave up. Before it quit, however, CODEBREAKER was able to correctly identify "Tokyo" as "a city in Asia"- information that was to prove vital in the war effort."