The Babbage Engine Exhibit opens May 10 at the Computer History Museum in Mountain View, Calif. The central artifact of the exhibit, a faithful construction of Englishman Charles Babbage's Difference ...

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 ...

Calculating machines were sometimes used to compute and print the mathematical tables widely used by nineteenth century engineers, mathematicians and scientists. A small number of digital computing ...

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 ...