HP-10C series

The HP-10C series is a popular family of calculators by HP dating from the 70s to the present.

Family Members

 * HP-10C – basic scientific calculator. ($80 1982-1984)
 * HP-11C – mid-range scientific calculator. ($135 1981-1989)
 * HP-12C – business/financial calculator. ($150 1981-present)
 * HP-15C – advanced scientific calculator. ($135 1982-1989)
 * HP-16C – computer programmer's calculator. ($150 1982-1989)