
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1801-1830
1872
circa 1842
1801
1879
circa 1832
1870
1853-1857
1878-1879
1862
circa 1846
1847-1848
1872
1846
circa 1880
1830 (original); 1967 (model)
1845-1855
1860s
1829
1875
1838
1866
1879
1801-1840 (original); 1901 (model)
1821
1820-1840
circa 1868
1860
1851
circa 1871
1829-1851
1800-1872
1825-1835
1865
1873
1801-1823
1831
1801-1838
1858
1860
1800
1802
1857-1870
1876
1815-1825
1835
1845-1855
1862-1863
1819