| Similarity | Rank | |
|---|---|---|
| dragonswitch | 0.920 | 85840 |
| unix-like | 0.912 | 84794 |
| openvision | 0.911 | 62630 |
| xenix | 0.909 | 53595 |
| vaxe | 0.904 | 68878 |
| 88000-based | 0.903 | 75103 |
| svr4-based | 0.902 | 82341 |
| uniface | 0.901 | 48607 |
| netdirector | 0.901 | 62581 |
| delrina | 0.900 | 61051 |
| covia | 0.899 | 75122 |
| teamware | 0.899 | 92308 |
| 88110-based | 0.898 | 88868 |
| non-unix | 0.898 | 66254 |
| interbase | 0.898 | 39569 |
| infonet | 0.898 | 88027 |
| 3000 | 0.897 | 72338 |
| ungermann-bass | 0.896 | 65593 |
| enhancements | 0.895 | 89398 |
| toolbus | 0.894 | 81394 |
| openodb | 0.894 | 69617 |
| symbolics | 0.893 | 74992 |
| wizdom | 0.893 | 82319 |
| stargroup | 0.893 | 99996 |
| odt | 0.892 | 54765 |