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We live in a digital age, everything is advancing even things as simple as houses you can control away from home. Computers started as a very simple device, the "Abacus".
The abacus (plural abaci or abacuses), also called a counting frame, is a calculating tool that was in use centuries before the adoption of the written modern numeral system and is still widely used by merchants, traders and clerks in Asia, Africa, and elsewhere. Today, abaci are often constructed as a bamboo frame with beads sliding on wires, but originally they were beans or stones moved in grooves in sand or on tablets of wood, stone, or metal.The Abacus was used in ancient Mesopotamia, Egypt, Persia, Greece, China, Rome, India, Japan, Korea, America, and Russia. The concept of this ancient computer is almost exactly the same any where you go, although they used different materials. It is amazing to think that computers have been around for thousands of years even though the abacus isn't considered a computer in this day and age.