| Similarity | Rank | |
|---|---|---|
| xprinter | 0.907 | 94681 |
| vxworks | 0.907 | 57890 |
| xenix | 0.906 | 53595 |
| non-unix | 0.904 | 66254 |
| ctos | 0.904 | 75879 |
| 3000 | 0.901 | 72338 |
| 2-based | 0.901 | 73369 |
| lu6 | 0.900 | 66217 |
| mpe | 0.899 | 43668 |
| irix | 0.899 | 59756 |
| svr4-based | 0.898 | 82341 |
| ca-unicenter | 0.898 | 41866 |
| teamware | 0.897 | 92308 |
| xvision | 0.897 | 93493 |
| x-window | 0.897 | 33944 |
| xpg3 | 0.896 | 75118 |
| unicenter | 0.896 | 90009 |
| vaxe | 0.896 | 68878 |
| multithreaded | 0.895 | 80529 |
| microport | 0.894 | 63523 |
| x-terminals | 0.893 | 75850 |
| netbios | 0.893 | 78132 |
| source-level | 0.892 | 90813 |
| vrtx | 0.892 | 91095 |
| gcos | 0.892 | 56928 |