Digital calculators is a complete computer!
What is a computer? The Computer is a machine that can process data and output informaiton
That because I said the calculator is a computer.
Actually in a normal calculator, it used to preform calculation by a small micro processor.
Following components used for make a calculator
Micro Processor
Ram(Withing few registries)
Keypad
LCD or LED display
Input data from the keypad and process it in the micro processor stage and output it through the Display.
