| Similarity | Rank | |
|---|---|---|
| pc-to-unix | 0.943 | 90794 |
| xenix | 0.943 | 53595 |
| saic | 0.942 | 90421 |
| iapx-86-based | 0.941 | 51691 |
| pc-xview | 0.938 | 92376 |
| non-unix | 0.938 | 66254 |
| posix-compliant | 0.937 | 64621 |
| unix-like | 0.937 | 84794 |
| x11r5 | 0.937 | 66283 |
| noblenet | 0.936 | 73803 |
| miserver | 0.936 | 74174 |
| unisql | 0.936 | 66236 |
| hd-doms | 0.935 | 55500 |
| 3000 | 0.935 | 72338 |
| 1-based | 0.935 | 84527 |
| non-ibm | 0.935 | 65045 |
| machten | 0.934 | 95239 |
| officepower | 0.934 | 52326 |
| toolbus | 0.934 | 81394 |
| cross-system | 0.934 | 92414 |
| netbuilder | 0.933 | 73811 |
| netdirector | 0.933 | 62581 |
| uniface | 0.933 | 48607 |
| ptx | 0.932 | 92249 |
| netview | 0.932 | 49602 |