As you might expect from its name, the "Difference Engine" is a strangely difficult object to describe. You might start by imagining the side of a large crib with uprights ringed by small metal wheels ...

In the mid-1800s, Charles Babbage got fed up with doing complex calculations by hand, so he designed what he called a "Difference Engine." He... A 19th-Century Mathematician Finally Proves Himself ...

This is the first printing calculator sold. From ancient times, scientists and mathematicians have calculated numerical tables. These tables were often rife with error, both from incorrect ...

Originally presented as the author's thesis (doctoral)--Linköping University, 1987.

The article written by Percy E. Ludgate in 1909 first gives thanks to Professor C. V. Boys, F.R.S. for his assistance on the subject of analytical machines. Ludgate also refers to the work of Charles ...

Doron Swade MBE, born 1944, is a museum curator and author, specialising in the history of computing. He is especially known for his work on the computer pioneer Charles Babbage and his Difference ...