Smithsonian Institution
National Museum of American History: Slates, Slide Rules and Software
Did you learn to calculate using a 7-foot-long slide rule? Did you learn about the properties of numbers using brightly colored Cuisenaire rods? Ever wonder who invented the graph paper you used in geometry class? Go back to the...
PBS
Pbs: Who Made America?: Innovators: Thomas Watson
One-page profile of influential innovator, Thomas Watson, a master businessman whose ideas and vision became the foundation of IBM.