| Similarity | Rank | |
|---|---|---|
| iapx-86-based | 0.951 | 51691 |
| 3000 | 0.948 | 72338 |
| multiuser | 0.944 | 59386 |
| svr4-based | 0.943 | 82341 |
| pc-xview | 0.943 | 92376 |
| netdirector | 0.940 | 62581 |
| teamware | 0.936 | 92308 |
| hp9000 | 0.935 | 85960 |
| sequelink | 0.935 | 91161 |
| mpx | 0.934 | 49934 |
| xsoft | 0.934 | 52698 |
| non-ibm | 0.934 | 65045 |
| ca-unicenter | 0.933 | 41866 |
| non-unix | 0.933 | 66254 |
| xenix | 0.932 | 53595 |
| sunpc | 0.932 | 75771 |
| tooltalk | 0.931 | 57693 |
| netbios | 0.931 | 78132 |
| enhancements | 0.931 | 89398 |
| picks | 0.931 | 85952 |
| cmw | 0.931 | 75285 |
| bs2000 | 0.931 | 74997 |
| targon | 0.931 | 82895 |
| unix-like | 0.931 | 84794 |
| u6000 | 0.930 | 55296 |