| Similarity | Rank | |
|---|---|---|
| nt | 0.774 | 4549 |
| accell | 0.761 | 42902 |
| osf | 0.746 | 7357 |
| lu6 | 0.737 | 66217 |
| aix | 0.729 | 10805 |
| vse | 0.727 | 92081 |
| db2 | 0.723 | 20259 |
| netware | 0.722 | 9094 |
| mvs | 0.722 | 22014 |
| svr4 | 0.720 | 10780 |
| streams | 0.718 | 61307 |
| deskpro | 0.717 | 65019 |
| windows | 0.716 | 2695 |
| miserver | 0.715 | 74174 |
| ms-dos | 0.715 | 7973 |
| sqlbase | 0.712 | 84840 |
| sunos | 0.712 | 31967 |
| motif-based | 0.707 | 46138 |
| pc-dos | 0.707 | 76178 |
| x-window | 0.707 | 33944 |
| mpe | 0.706 | 43668 |
| hp-ux | 0.706 | 21501 |
| cose-compliant | 0.705 | 77666 |
| 2-based | 0.705 | 73369 |
| rdb | 0.704 | 33659 |