It was the fall of 1965 and Jack Kilby and Patrick Haggerty of Texas Instruments sat on a flight as Haggerty explained his idea for a calculator that could fit in the palm of a hand. This was a huge ...

In 1966, there were no cheap, reliable keyboards. The keyboards that did exist were too bulky and expensive to work for the calculator. Jim Van Tassel took on the task of designing a small, ...

Scientific calculators can perform all the functions of a basic calculator as well as execute far more complex mathematical functions and equations. The ability to solve polynomials and simultaneous ...