Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 162,348 pages of information and 244,505 images on early companies, their products and the people who designed and built them.
Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.
Maj-General Henry Prevost Babbage (1824-1918)
1824 Born the son of Charles Babbage and his wife Georgina Whitmore
1856 Presented a paper on Scheutz's Difference Engine and Babbage's Mechanical Notation.
c.1910 He built a hand-operated printing calculator, based on the plans for the mill of his father's Analytical Engine. It was a four-function calculator designed for addition, subtraction, multiplication and division.[1]
Grace's Guide web site design is Copyright © 2021 by Grace's Guide Ltd. The text of this web site is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Maintained by Sapere Software