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ancient babylonians create the abacuschinese use wire and beads to innovate the abacus.john napier creates "napiers bones" for calculating multiplication equations for the first 9 multiples of a number.Charles Xavier Thomas invents the ARTHMOMETER that becomes first mass produced calculatorfirst electronic calculators invented: Anita MK VII and Anita MK8hand held electronic calculatorts include popular models canon pocketronic, busicom junior and sharp EL-8.liquid crystal display (LCD)first graphing calculatorfirst cellphones with calculators.todays calculator is very advanced. blah, blah, blah... (copy)
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