computer operating system
| software
| computer operating systems abbr. | |
| patents. | sistemi operativi per computer |
| software abbr. | |
| gen. | hardware; software |
| econ. | software |
| environ. | software |
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| sistemi operativi per computer | |||
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| COS | |||
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computer operating system : 2 phrases in 1 subject |
| Patents | 2 |