Personal Devices · Recorded milestone
Pocket calculator
Recorded year1970
A pocket calculator does sums, percentages and science functions instantly, ending slide rules and long arithmetic by hand.
Explore this milestone on the interactive mapBuilt on
- Integrated circuitRecorded · 1958enables
- MOSFETRecorded · 1959requires
Led to
Sources & evidence
Dataset updated 2026-10-18. This individual record has not been separately re-reviewed.