NEW YORK (AP) - John Diebold, a business visionary who preached computerization during the era of Elvis and Eisenhower as the future of worldwide industry, has died at the age of 79. Diebold died of esophageal cancer Monday at his home in suburban Bedford Hills, said a nephew, John B. Diebold Although Diebold is now hailed as a prophet of the computerized future, his zeal for computers was not widely shared in the 1950s. After graduating from the Harvard Business School in 1951, he was hired by a New York management consulting firm and was fired three times for insisting...