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Digital Computer Electronics - Section 1 Multiple Questions and Answers.
| 11. | In which of the following gates, the output is 1, if and only if at least one input is 1? | ||
| A. | NOR | ||
| B. | AND | ||
| C. | OR | ||
| D. | NAND | ||
| 12. | The time required for a gate or inverter to change its state is called: | ||
| A. | Propagation time | ||
| B. | Decay time | ||
| C. | Rise time | ||
| D. | Charging time | ||
| 13. | The time required for a pulse to change from 10 to 90 percent of its maximum value is called: | ||
| A. | Propagation time | ||
| B. | Decay time | ||
| C. | Rise time | ||
| D. | Operating speed | ||
| 14. | The maximum frequency at which digital data can be applied to gate is called: | ||
| A. | Operating speed | ||
| B. | Propagation speed | ||
| C. | Binary level transaction period | ||
| D. | Charging time | ||
| 15. | What is the minimum number of two-input NAND gates used to perform the function of two input OR gate ? | ||
| A. | one | ||
| B. | two | ||
| C. | three | ||
| D. | four | ||
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