
Difference Engine No. 1
circa 1832
circa 1832
1835
1829
1825-1835
1835
1834
1829
1832
1834
1834
1826
1831
1955; 1830
1826
1893-4
1830
1825
2000-100 BCE
1833
1831
1829
1934
1863-7
1829
1832
1772 (original); 1919 (model)
1826
1990-96
1830
1830-1835
1830
1826
1831
1830 (original); 1967 (model)
1833
1775-1799 (original); 1900-1907 (model)
1826
1826
1832
4000-2001 BCE
1930 (replica); 1834 (original)
1829
1705-1737
1835
1828
1825
1830
1829
1829
1835