![](https://coimages.sciencemuseumgroup.org.uk/31/626/large_thumbnail_1959_0025__0010_.jpg)
Dr. Mays and Dr. Prinz's Relay-operated logic machine
1951
1951
1934
1950-1952
1969
1920-1930
1995-2000
1998
1976
1933
2021
1949
1890-1900
2015
1940-1945
1953
1946
1925
circa 1980
1910-1911
1900-1920
1952
1952
1952
1938
1910-1950
1910-1939
1900-1920
1930-1950
1910-1926
1989
1955
1925
1963
1907
1960
1908
1908
1995-1996
1969-2000
1941
1940-1960
1910-1920
1963
1960
1930