Year |
HP |
Texas Instruments |
Casio |
Sharp |
Other |
Note |
| 1972/73 |  |
 |
First portable scientific and finance calculators | |||
| 1974/75 |  |
 |
 |
First programmable calculator | ||
| 1976/77 |  |
 |
 |
 |
 |
Low cost and powerful programmable scientific calculators |
| 1978/79 |  |
 |
 |
 |
Special function calculators | |
| 1980/81 |  |
 |
 |
 |
Calculator with tape I/O and alphanumeric display | |
| 1982/83 |  |
 |
 |
 |
Basic language programmable calculators |
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