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Digital Computer Electronics - Section 7 Multiple Questions and Answers.
| 41. | The hexadecimal number system is widely used in analyzing and programming ______ | ||
| A. | registers | ||
| B. | chips | ||
| C. | microprocessors | ||
| D. | vacuum tube | ||
| 42. | A combinational logic circuit which is used to send data coming from a single source to two or more separate destinations is called as | ||
| A. | decoder | ||
| B. | encoder | ||
| C. | multiplexer | ||
| D. | demultiplexer | ||
| 43. | How many full and half-adders are required to add 16-bit numbers? | ||
| A. | 8 half-adders, 8 full-adders | ||
| B. | 1 half-adders, 15 full-adders | ||
| C. | 16 half-adders, no full-adders | ||
| D. | 4 half-adders, 12 full-adders | ||
| 45. | A gate is a logic circuit with one or more input signals but _____ output signal. | ||
| A. | two | ||
| B. | double | ||
| C. | one | ||
| D. | more than one | ||
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