In 1967, Jack Kilby and his team developed a calculator that aligned closely with Haggerty's initial vision. Although it was limited to basic arithmetic operations and weighed over two pounds, its price was $150. Despite these drawbacks, it proved to be a significant success as it introduced an entirely new market for a previously unconsidered device. As technology advanced, calculators became progressively smaller, more powerful, and cheaper.

By 1972, the cost of pocket calculators had decreased to $100 with sales reaching 5 million units. This trend continued, with prices dropping to $25 by 1975 and annual sales doubling. By 2014, a simple pocket calculator from Texas Instruments was priced at only $3.62 at Walmart, illustrating the remarkable evolution and widespread adoption of this technology.