| Similarity | Rank | |
|---|---|---|
| svr4-based | 0.934 | 82341 |
| ca-unicenter | 0.929 | 41866 |
| xenix | 0.926 | 53595 |
| mpx | 0.925 | 49934 |
| uts | 0.924 | 43620 |
| odt | 0.921 | 54765 |
| iapx-86-based | 0.920 | 51691 |
| 3000 | 0.919 | 72338 |
| r3000-based | 0.919 | 68730 |
| lsx | 0.919 | 66805 |
| intel-based | 0.918 | 55849 |
| shrinkwrap | 0.917 | 54508 |
| x-server | 0.916 | 73175 |
| 700s | 0.916 | 59326 |
| alpha-based | 0.916 | 47070 |
| corp-based | 0.915 | 53022 |
| multi-processor | 0.914 | 26708 |
| ftx | 0.914 | 88971 |
| irix | 0.914 | 59756 |
| r4000-based | 0.913 | 81169 |
| openvms | 0.913 | 31561 |
| framemaker | 0.913 | 57654 |
| targon | 0.913 | 82895 |
| miserver | 0.911 | 74174 |
| single-user | 0.911 | 39598 |