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Operating Systems Concepts - Section 6 Multiple Questions and Answers.
| 26. | IBM released its first PC in 1981. Can you name the operating system which was most popular at that time? | ||
| A. | MS-DOS | ||
| B. | PC-DOS | ||
| C. | OS/360 | ||
| D. | CP/M | ||
| 27. | If the number of bits in a virtual address of a program is 16 and the page size is 0.5 K bytes, the number of pages in the virtual address space is | ||
| A. | 16 | ||
| B. | 32 | ||
| C. | 64 | ||
| D. | 128 | ||
| 28. | Which table is a permanent database that has an entry for each terminal symbol. | ||
| A. | Terminal table | ||
| B. | Literal table | ||
| C. | Identifier table | ||
| D. | Reductions | ||
| 30. | Swapping | ||
| A. | works best with many small partitions | ||
| B. | allows many programs to use memory simultaneously | ||
| C. | allows each program in turn to use the memory | ||
| D. | does not work with overlaying | ||
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