| Similarity | Rank | |
|---|---|---|
| x11r5 | 0.900 | 66283 |
| svr4-based | 0.898 | 82341 |
| 1-based | 0.895 | 84527 |
| source-level | 0.893 | 90813 |
| xcelerated | 0.891 | 65915 |
| lu6 | 0.890 | 66217 |
| xpg3 | 0.888 | 75118 |
| posix-compliant | 0.886 | 64621 |
| codecenter | 0.886 | 74846 |
| mpx | 0.886 | 49934 |
| ultrix | 0.884 | 25945 |
| irix | 0.884 | 59756 |
| iapx-86-based | 0.883 | 51691 |
| ftx | 0.882 | 88971 |
| sinix | 0.882 | 63188 |
| xenix | 0.880 | 53595 |
| sqlbase | 0.878 | 84840 |
| miserver | 0.878 | 74174 |
| openwindows | 0.877 | 75408 |
| dpx | 0.876 | 43758 |
| ez-rpc | 0.876 | 81240 |
| bs2000 | 0.875 | 74997 |
| xprinter | 0.875 | 94681 |
| corp-based | 0.874 | 53022 |
| centerline | 0.874 | 63472 |