
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1948-1953
1934
1690
1910
circa 1955
1997
circa 1750
circa 1972
1910
1985
1901-1930
1984
1994
circa 1805
1867
1867
circa 1964
1950-1960
1885-1894
1872
1900-1930
1859
1950-1960
1795-1810
1588
1588
1588
1588
1951
1930-1940
1957
1920-1925
1901-1930
1663
1917
1887-1903
1601
1601
1755
1997
1926-1928
1864
1960-2007
1872
2011