By A Mystery Man Writer
From Desktops to HandheldsIntegrated circuits allowed electronic calculators to shrink. At Texas Instruments, integrated circuit pioneer Jack Kilby designed the first hand-held, four-function calculator in 1967. Size wasn’t the only thing shrinking. The first mass market handheld, the Bowmar Brain, cost $245 in 1971. Within a decade, similar calculators sold for $10!
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