
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1853-1857
1879-1896
1801-1900
1829
1846
1829
1815-1825
circa 1861
1862
1898
1850
1831
1801-1900
1858
1877-1897
1885
1875
1884
1897-1898
1801-1830
1872
1858
1849
circa 1900
1889
1884-1900
1801-1900
1847-1848
1830 (original); 1967 (model)
1801-1900
1821
1869
1870
1880-1900
1870-1888
1801-1899
1872
1895
1896
1842
1854
1837
1837
1900
1886
1842
circa 1885
1860