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callback : 166 phrases in 17 subjects |
| Computer networks | 1 |
| Computers | 1 |
| Electronics | 1 |
| General | 3 |
| Information security and data protection | 9 |
| Information technology | 13 |
| Internet | 1 |
| Law | 1 |
| Mass media | 5 |
| Mathematics | 1 |
| Microsoft | 13 |
| Military | 2 |
| Programming | 78 |
| Security systems | 11 |
| Technology | 4 |
| Telecommunications | 19 |
| Telephony | 3 |