Question

Hey!

who invested calculator

Answer 1

The first solid-state electronic calculator was created in the early 1960s. Pocket-sized devices became available in the 1970s, especially after the Intel 4004, the first microprocessor, was developed by Intel for the Japanese calculator company Busicom. They later became used commonly within the petroleum industry (oil and gas).

Answer 2

Answer:

1. Texas Instruments
2. Jack Kilby
3. Edith Clarke

hope it helps you dear...