| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| first calculator 1960s | 0.33 | 0.9 | 7660 | 79 | 22 |
| first | 1.49 | 0.9 | 9886 | 80 | 5 |
| calculator | 0.65 | 0.6 | 8083 | 61 | 10 |
| 1960s | 1.36 | 0.4 | 361 | 32 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| calculator 1960 first | 0.13 | 0.3 | 8153 | 93 |
| the first handheld calculator in the 1960s | 1.25 | 0.1 | 9046 | 74 |
| the history of the handheld calculator | 0.37 | 0.7 | 804 | 38 |
| when was the first handheld calculator made | 0.88 | 0.9 | 6262 | 67 |
| the first handheld calculator | 0.46 | 0.1 | 1728 | 98 |
| who made the first handheld calculator | 1.71 | 0.9 | 2195 | 64 |
| who invented the first handheld calculator | 0.36 | 0.8 | 7111 | 85 |
| first handheld calculator 1972 | 1.05 | 0.2 | 9566 | 38 |
| first handheld calculator invented | 1.65 | 0.6 | 9209 | 36 |
| first handheld calculator 1967 | 1.41 | 0.3 | 3776 | 73 |
| world's first handheld calculator | 0.24 | 0.5 | 4626 | 11 |
| first handheld digital calculator | 1.1 | 0.8 | 9078 | 74 |
| who invented the first hand-held calculator | 1.02 | 0.3 | 837 | 43 |
| first hand held calculator | 1.53 | 0.8 | 5366 | 26 |
| when did handheld calculators become common | 0.71 | 0.7 | 3973 | 95 |
| when were hand held calculators invented | 1.35 | 0.9 | 2911 | 34 |
| first hp handheld calculator | 0.79 | 0.6 | 4970 | 99 |
| who made the hand calculator | 0.26 | 0.6 | 6915 | 40 |
