| Similarity | Rank | |
|---|---|---|
| openvms | 0.934 | 31561 |
| uniface | 0.931 | 48607 |
| sunos | 0.929 | 31967 |
| r3000-based | 0.929 | 68730 |
| iapx-86-based | 0.926 | 51691 |
| hp9000 | 0.925 | 85960 |
| mpx | 0.925 | 49934 |
| svr4-based | 0.924 | 82341 |
| sparcstations | 0.924 | 42090 |
| shrinkwrap | 0.924 | 54508 |
| x-window | 0.921 | 33944 |
| xenix | 0.920 | 53595 |
| sinix | 0.920 | 63188 |
| ultrix | 0.919 | 25945 |
| multi-processor | 0.919 | 26708 |
| debuts | 0.919 | 45719 |
| decstation | 0.919 | 55861 |
| x-terminals | 0.918 | 75850 |
| 700s | 0.918 | 59326 |
| lsx | 0.918 | 66805 |
| u6000 | 0.917 | 55296 |
| 3000 | 0.916 | 72338 |
| pc-dos | 0.915 | 76178 |
| sparcs | 0.915 | 47503 |
| riscs | 0.914 | 38008 |