(CNNMoney) A glimmer of hope has arrived for parents tired of having to buy their high school students an overpriced calculator. Smarter Balanced, which administers school proficiency tests in 15 ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. A glimmer of hope has arrived for parents ...

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, ...

In Part 1 of the story behind the invention of the handheld calculator, we left off with the development of the power supply. Part 2 concludes the story, kicking off with how the keyboard came about… ...