| 1. | Which of the following shift operations divide a signed binary number by 2 ? |
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Answer: (b).Logical right shift
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| 2. | Normally digital computers are based on |
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Answer: (b).NAND and NOR gates
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| 3. | BCD stands for |
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Answer: (c).Binary coded decimal
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| 4. | The basic circuit ECL supports the |
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Answer: (d).OR-NOR logic
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| 5. | An adder-subtractor single unit can be designed using full adder and |
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Answer: (b).XOR gates
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| 6. | Which of the following is not a universal building block ? |
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Answer: (c).2 input XOR gate
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| 7. | CARRY in half adder can be obtained using |
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Answer: (b).AND gate
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| 8. | A NAND gate has inputs A and B. It's output is connected to the both of the inputs of another NAND gate. An equivalent gate for these two NAND gates is |
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Answer: (b).AND gate
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| 9. | The operation which commutative but not associative is |
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Answer: (d).NAND
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| 10. | In which of the following gates, the output is 1 if and only if at least one input is 1? |
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Answer: (a).OR
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