TIL The first commercial graphing calculator was introduced by Casio in 1985 for $75. By 1986 it had been adopted by a program in Ohio schools, and other states soon followed
TIL The first commercial graphing calculator was introduced by Casio in 1985 for $75. By 1986 it had been adopted by a program in Ohio schools, and other states soon followed
americanhistory.si.edu
Electronic Calculators—Handheld
In the course of the 1970s, handheld electronic calculators transformed the way tens of millions of people did arithmetic. Engineers abandoned slide rules, business people gave up desktop calculating ...