The world’s first handheld scientific calculator

2026-01-31 - 19:25

On February 1, 1972 — just a day before a year was completed from the official go-ahead for the product — HP-35 was made available to the world. Now recognised as the world’s first scientific pocket calculator, the gadget revolutionised the way we looked at handheld equipment. A.S.Ganesh punches some keys to give you the tale of these number crunchers...