
Difference Engine No. 1
circa 1832
circa 1832
1829
circa 1846
1838
1830 (original); 1967 (model)
1846
1835
1837
1837
1844
1840
1838
1839 (original); circa 1988 (replica)
1838
1844
1829
1831
1829
1775-1799 (original); 1900-1907 (model)
1642-1649 (original); 1883 (model)
1668; 1924
1831
1837
1840
1990-96
1610; 1923
1830
1825
1846
1772 (original); 1919 (model)
2000-100 BCE
circa 1842
1823-1825
1822
1840
1845
1825-1835
1838
1990-95
1934
1843
1846
1832
1828
1835
1845
1831
1934
1801-1840 (original); 1901 (model)
1705-1737