RCLcalculators
RCL, a simulator for Texas Instrument calculators from the 70's.
Calculators became available in the early 70's, soon after the integrates circuits, and several companies were competing with each other for a share of this market.
Texas Instruments was one of the bigger companies producing calculators. With RCL it is possible to recreate the TI calculators, strating with the Ti59e, with 960 program steps and a persistant memory (a combination of the the Ti58C and the Ti59).
RCL offers any person interested in the ancient ones in calculators (more specific...