Come along way haven't we? It's amazing how that first electronic calculator took up a small room. Where as today they are the size of an i-phone, and on the i-phone as well.

Yes, pretty amazing, and to top that, the first calculator was actually the abacus, going back many centuries.

That's right. The Chinese came up with using the abacus to do calculations. Of course you can still find those.

An Abacus Calculator Demonstration:

Very cool Scottyee, thank you for sharing!