57. | ‘CD’ computer abbreviation usually means ? | |||||||
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58. | ‘.BAK’ extension refers usually to what kind of file? | |||||||
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59. | Where is the headquarters of Intel located? | |||||||
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60. | Who co-created the UNIX operating system in 1969 with Dennis Ritchie? | |||||||
Answer: Option C Explanation: No answer description available for this question |