| operating system → IsA → the software | 0.65 | |
| operating system → IsA → program | 0.47 | |
| operating system → IsA → a software program | 0.38 | |
| operating system → IsA → system software | 0.36 | |
| operating system → IsA → the most important software | 0.30 | |
| operating system → IsA → full-featured operating system | 0.30 | |
| operating system → IsA → a special purpose operating sys… | 0.28 | |
| operating system → IsA → a commodity operating system | 0.25 | |
| operating system → IsA → combination of operating systems | 0.25 | |
| operating system → IsA → multitasking operating system | 0.25 | |
| operating system → IsA → sophisticated program | 0.25 |