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![World's first handheld calculator, ''Cal-Tech'', from TI] - Texas Instruments Records - SMU Digital Collections](https://digitalcollections.smu.edu/digital/api/singleitem/image/tir/0/default.jpg "World's first handheld calculator, ''Cal-Tech'', from TI] - Texas Instruments Records - SMU Digital Collections")
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The first made hand-held calculator by Texas Instruments is displayed during a ceremony to mark the 40th anniversary of the invention of the electronic calculator at the National Museum of American History
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![Jack Kilby holding microchips and the first Cal-Tech calculator presented to Patrick E. Haggerty on March 29, 1967] - Texas Instruments Records - SMU Digital Collections](https://digitalcollections.smu.edu/digital/api/singleitem/image/tir/121/default.jpg "Jack Kilby holding microchips and the first Cal-Tech calculator presented to Patrick E. Haggerty on March 29, 1967] - Texas Instruments Records - SMU Digital Collections")
Jack Kilby holding microchips and the first Cal-Tech calculator presented to Patrick E. Haggerty on March 29, 1967] - Texas Instruments Records - SMU Digital Collections
