
Difference Engine No. 1
circa 1832
circa 1832
1829
1821-1831
1834
1829
1832
1834
1834
1826
1831
1955; 1830
1826
1893-4
1821
1830
1825
2000-100 BCE
1833
1831
1863-7
1829
1829
circa 1821-1825
1821
1821
1832
1772 (original); 1919 (model)
1826
1990-96
1823
1824
1830
1830
1826
1831
1830 (original); 1967 (model)
1824
1833
1823-1825
1930 (replica); 1834 (original)
1829
1829
1829
1705-1737
1828
1870-1877
1823
1825
1830
1823-1825