| English thesaurus | |||
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| A collection of computer programs used in the design, processing and control of all applications (The programs and processing routines that control the computer hardware, including the operating system and utility programs) | |||
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system software : 22 phrases in 4 subjects |
| Communications | 1 |
| General | 2 |
| Information technology | 13 |
| Patents | 6 |