Demonstration model of Babbage's Difference Engine No 1, 19th century.

Image number: 10307009

Demonstration model of  Babbage's Difference Engine No 1, 19th century.

This model of Difference Engine No 1 was built by Henry Prevost Babbage (1824-1918) from the designs of his father, British computing pioneer Charles Babbage (1791-1871). This was one of approximately six demonstration models of the calculating mechanism of Engine No 1 built by Henry after his father's death, using unused parts from the original. Charles Babbage conceived the idea of building an automatic calculating machine which would eliminate the inaccuracy that occurred when compiling mathematical tables by hand. Never built during Charles Babbage's lifetime, it was a decimal digital machine - the value of a number being represented by the positions of toothed wheels marked with decimal numbers.

Image number:
10307009
Credit:
Science Museum/Science & Society Picture Library
Date taken:
12 January 2004 21:19
Image rights:
Science Museum
 

Related Images

11 related image(s)