| English thesaurus | |||
| |||
| PCM | |||
|
Pulse Code : 64 phrases in 13 subjects |
| Automated equipment | 9 |
| Communications | 13 |
| Computers | 2 |
| Electronics | 10 |
| General | 4 |
| Information technology | 7 |
| Measuring instruments | 5 |
| Medical appliances | 1 |
| Microelectronics | 2 |
| Physics | 2 |
| Power lines | 2 |
| Radio | 1 |
| Technology | 6 |