| Similarity | Rank | |
|---|---|---|
| svr4-based | 0.948 | 82341 |
| uniface | 0.940 | 48607 |
| iapx-86-based | 0.939 | 51691 |
| pc-to-unix | 0.935 | 90794 |
| sequelink | 0.933 | 91161 |
| r3000-based | 0.933 | 68730 |
| hd-doms | 0.933 | 55500 |
| codecenter | 0.932 | 74846 |
| motif-based | 0.931 | 46138 |
| ctos | 0.931 | 75879 |
| ca-unicenter | 0.930 | 41866 |
| non-ibm | 0.930 | 65045 |
| non-unix | 0.930 | 66254 |
| x-window | 0.929 | 33944 |
| 3000 | 0.928 | 72338 |
| smartstream | 0.928 | 32838 |
| posix-compliant | 0.928 | 64621 |
| openwindows | 0.927 | 75408 |
| informix-gateway | 0.927 | 91940 |
| source-level | 0.927 | 90813 |
| lantastic | 0.927 | 41668 |
| 680x0 | 0.927 | 60210 |
| xenix | 0.927 | 53595 |
| corp-based | 0.927 | 53022 |
| vaxe | 0.926 | 68878 |