The hand-held pocket calculator was invented at Texas Instruments in 1966
The hand-held pocket calculator was invented at Texas Instruments, Incorporated (TI) in 1966 by a development team which included Jerry D. Merryman, James H. Van Tassel and Jack St. Clair Kilby. In 1974 a basic patent for miniature electronic calculators has been issued to Texas Instruments Incorporated. The patent is for personal-sized, battery-operated calculators which have their main electronic circuitry in a single integrated semiconductor circuit array, such as the popular "one-chip" calculators.
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