The first "compact" calculator was released in 1957, and needed to be built into a desk. Over time the device shrank, to the point where you could easily fit it in your hand. These days most people use software calculators on their phones, instead of a separate device. This gives you a lot of choice, and…
Scooped by
Tom D'Amico (@TDOttawa)
onto iGeneration - 21st Century Education (Pedagogy & Digital Innovation) |