| Similarity | Rank | |
|---|---|---|
| UNIX | 0.794 | 26761 |
| Fortran | 0.792 | 62907 |
| MS-DOS | 0.778 | 68770 |
| Unix | 0.773 | 21500 |
| COBOL | 0.772 | 76421 |
| Smalltalk | 0.771 | 91348 |
| mainframe | 0.761 | 36557 |
| mainframes | 0.748 | 79410 |
| Lisp | 0.742 | 46662 |
| DOS | 0.723 | 25920 |
| TCP | 0.723 | 17992 |
| client-server | 0.721 | 84186 |
| assembler | 0.718 | 57311 |
| RISC | 0.716 | 60316 |
| POSIX | 0.716 | 64886 |
| subroutines | 0.713 | 85214 |
| Telnet | 0.711 | 76014 |
| GUI | 0.711 | 18265 |
| JIT | 0.703 | 69212 |
| LANSA | 0.700 | 69880 |
| implementations | 0.699 | 18472 |
| C64 | 0.699 | 88701 |
| BSD | 0.698 | 45167 |
| NetBSD | 0.698 | 87686 |
| subsystem | 0.696 | 45765 |