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Operating Systems Concepts - Section 6 Multiple Questions and Answers.
| 11. | When did IBM release the first version of disk operating system DOS version 1.0? | ||
| A. | 1981 | ||
| B. | 1982 | ||
| C. | 1983 | ||
| D. | 1984 | ||
| 12. | Which of the following is false about disk when compared to main memory? | ||
| A. | non-volatile | ||
| B. | longer storage capacity | ||
| C. | lower price per bit | ||
| D. | faster | ||
| 13. | Producer consumer problem can be solved using | ||
| A. | semaphores | ||
| B. | event counters | ||
| C. | monitors | ||
| D. | all of the above | ||
| 15. | Seeks analysis | ||
| A. | is used for analyzing paging problems | ||
| B. | is used for analyzing device busy problems | ||
| C. | is used for analyzing control-unit busy problems | ||
| D. | is only shown on real-time displays | ||
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