Computer System Architecture - Digital Logic Circuits - Combinational Circuits
- Option : A
- Explanation : 2 select line A and B will work as address lines, so we have 4 addresses (or words) Each word will have 4 bits so memory required is 4 x 4 = 16 bits
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17. What logic function is produced by adding an inverter to the output of an AND gate ?
- Option : A
- Explanation :
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18. Which of the following gates is known as coincidence detector ?
- Option : A
- Explanation :
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- Option : B
- Explanation :
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20. A positive AND gate is also a negative
- Option : D
- Explanation : Truth Table For AND 0 0 => 0 0 1 => 0 1 0 => 0 1 1 => 1 Now invert all values (as if you place inverters on the two inputs and the one output): 1 1 => 1 1 0 => 1 0 1 => 1 0 0 => 0
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