| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| first operating system developed | 0.23 | 0.3 | 2642 | 93 | 32 |
| first | 1.24 | 0.6 | 6917 | 65 | 5 |
| operating | 0.24 | 0.2 | 6417 | 24 | 9 |
| system | 1.83 | 0.4 | 3773 | 20 | 6 |
| developed | 1.61 | 0.7 | 8478 | 87 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| first operating system developed | 1.2 | 0.3 | 8593 | 17 |
