Mechanical Counting Devices: Examples for JSS1-3, History & More

From the simple abacus to the more complex Pascaline and slide rule, mechanical counting devices have played a vital role in human history.
From the simple abacus to the more complex Pascaline and slide rule, mechanical counting devices have played a vital role in human history.
Electronic Counting Devices gave way to modern computer. with the invention of Herman Hollerith Punch Cards and the development of Von Neuman Architecture.