
Difference Engine No. 1
circa 1832
circa 1832
1830 (original); 1967 (model)
1829
1821
1825-1835
1831
1815-1825
1835
1819
1775-1799 (original); 1900-1907 (model)
1668; 1924
1610; 1923
1826
1834
1829
1832
1834
1834
1893-4
1830
1825
1820
1955; 1830
1642-1649 (original); 1883 (model)
1835
1826
1815
1815
1815
1863-7
1821
1829
1816
2000-100 BCE
1833
1821-1831
1831
1820-1830
1934
circa 1821-1825
1832
1772 (original); 1919 (model)
1823
1823-1825
1930 (replica); 1834 (original)
1822
1830
1826
1831
1815