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Digital Computer Electronics - Section 1 Multiple Questions and Answers.
| 21. | How many truth tables can be made from one function table ? | ||
| A. | one | ||
| B. | two | ||
| C. | three | ||
| D. | any number | ||
| 22. | A comparison between serial and parallel adder reveals that serial order? | ||
| A. | is faster | ||
| B. | is slower | ||
| C. | operates at the same speed as parallel adder | ||
| D. | is more complicated | ||
| 24. | A combinational logic circuit which generates a particular binary word or number is: | ||
| A. | Demultiplexer | ||
| B. | Encoder | ||
| C. | Multiplexer | ||
| D. | Decoder | ||
| 25. | In which of the following adder circuits, the carry look ripple delay is eliminated ? | ||
| A. | Half adder | ||
| B. | Full adder | ||
| C. | Parallel adder | ||
| D. | Carry-look-ahead adder | ||
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