| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| operating system book pdf | 1.48 | 0.3 | 4027 | 51 | 25 |
| operating | 0.24 | 0.9 | 6731 | 92 | 9 |
| system | 0.91 | 0.9 | 2461 | 91 | 6 |
| book | 1.05 | 0.7 | 2915 | 76 | 4 |
| 1.9 | 0.8 | 3474 | 51 | 3 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| operating system book pdf | 1.47 | 0.6 | 7361 | 85 |
