
Difference Engine No. 1
circa 1832
circa 1832
1847-1848
1838
1830 (original); 1967 (model)
1829
1842
1851
1837
1837
1850
circa 1840
1849
1842
1840-1850
1841
1835
1837
1847
1829
1840-1851
1826
1831
1841
1851
1838
1846
1844
1845-1851
1837
1844
1850
1851
1830
1840
1849
1833
1831
1836
1842
1838
1849
1834-1844
1837
1843
1955; 1830
1829-1851
1849
1830-1850
1846
1848