The IBM 305 Ramac: The secret grandfather of Deep Blue?
€29.90 Man vs Machine, 1960 A few days ago, while looking for information about the Italian master Mario Monticelli (winner of Budapest 1926 and winner of a famous game against Bogoljubov in San Remo 1930), I found an article about a game that Monticelli played a Ramac 305, an IBM computer, in Milan in 1960 (!). The IBM 305 RAMAC was the first commercial computer to use a moving-head hard disk drive (magnetic disk storage) as secondary storage. The system was publicly announced on 14 September 1956, with test units already installed in the U.S. Navy and private companies. RA...
Source: chessbase.com