Brilliant man invented the hand-held calculator

JERRY Merryman was one of the inventors of the hand-held electronic calculator.

Mr Merryman, who died aged 86, was one of the three men credited with inventing the hand-held calculator while working at Dallas-based Texas Instruments (TI).

The team was led by Jack Kilby, who made way for today’s computers with the invention of the integrated circuit and won the Nobel Prize.

The prototype built by the team, which also included James Van Tassel, is at the Smithsonian Institution.

“I have a PhD in material science and I’ve known hundreds of scientists, professors, Nobel prize-winners and so on. Jerry Merryman was the most brilliant man that I’ve ever met. Period.

“Absolutely, outstandingly brilliant,” said Vernon Porter, a former TI colleague and friend.

“He had an incredible memory and he had an ability to pull up for- mulas, information, on almost any subject.”

Mr Merryman told NPR’s All Things Considered in 2013, “It was late 1965 and Jack Kilby, my boss, presented the idea of a calculator.

“He called some people in his office. He says, we’d like to have some sort of computing device, perhaps to replace the slide rule. It would be nice if it were as small as this little book that I have in my hand.”

Mr Merryman added, “Silly me, I thought we were just making a calculator, but we were creating an electronic revolution.”

The Smithsonian says that the three had made enough progress by September 1967 to apply for a patent, which was subsequently revised before the final application in June 1974.

Mr Merryman, who was born on June 17, 1932, grew up in Hearne in Central Texas. By the age of 11 he had become the radio repairman for the town.

“He’d scrape together a few cents to go to the movies in the afternoons and evenings and the police would come get him out ... because their radios would break and he had to fix them,” said Mr Merryman’s wife, Phyllis Merryman.

He went to Texas A&M University in College Station but did not finish.

His jobs after that included working at the university’s department of oceanography and meteorology and before long he was on an oil platform in the Gulf of Mexico measuring the force of hurricane winds.

Despite his accomplishments, he was humble.

“He wouldn’t ever boast or brag about himself, not ever,” said daughter Melissa Merryman, who became stepsisters with her friend Kim Ikovic when the.

Jerry Merryman retired from TI in January 1994, the company said.