| Similarity | Rank | |
|---|---|---|
| xenix | 0.947 | 53595 |
| svr4-based | 0.945 | 82341 |
| 1-based | 0.940 | 84527 |
| sqlbase | 0.939 | 84840 |
| pc-xview | 0.938 | 92376 |
| openwindows | 0.938 | 75408 |
| informix-gateway | 0.937 | 91940 |
| unisql | 0.936 | 66236 |
| ptx | 0.935 | 92249 |
| r3000-based | 0.934 | 68730 |
| tooltalk | 0.933 | 57693 |
| cose-compliant | 0.930 | 77666 |
| iapx-86-based | 0.929 | 51691 |
| idapi | 0.929 | 99682 |
| pc-dos | 0.928 | 76178 |
| cpi-c | 0.928 | 92018 |
| ctos | 0.928 | 75879 |
| lu6 | 0.928 | 66217 |
| 3000 | 0.927 | 72338 |
| mpx | 0.927 | 49934 |
| multithreaded | 0.927 | 80529 |
| irix | 0.927 | 59756 |
| sockets | 0.927 | 66495 |
| pex | 0.927 | 53127 |
| miserver | 0.926 | 74174 |