Discussion
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- Question
A NAND gate is equivalent to an AND gate followed by an inverter. All inputs must be _____ to get a low output
Options- A. low
- B. high
- C. some low and some high
- D. 0's
- E. None of the above
- Correct Answer
- high
- 1. Conversion of an octal number 74328 to a binary number is
Options- A. 11110001101112
- B. 1111000110102
- C. 1100110101112
- D. 1111111110002
- E. None of the above Discuss
- 2. In which of the following adder circuits, the carry look ripple delay is eliminated?
Options- A. Half adder
- B. Full adder
- C. Parallel adder
- D. Carry-look-ahead adder
- E. None of the above Discuss
- 3. What is the 1's complement of 0000 1111 0010 1101 number?
Options- A. 1111 0000 0010 1101
- B. 1111 0000 1101 0010
- C. 1111 1100 1010 1100
- D. 1001 0010 1010 1100
- E. None of the above Discuss
- 4. Conversion of an octal number 1368 to hexadecimal number is
Options- A. 7E16
- B. 5E16
- C. 5A16
- D. 5D16
- E. None of the above Discuss
- 5. The m-bit parallel adder consists of:
Options- A. (m+1) full adders
- B. m/2 full adders
- C. m-1 full adders
- D. m full adders
- E. None of the above Discuss
- 6. An OR gate has 6 inputs. How many input words are in its truth table?
Options- A. 64
- B. 32
- C. 16
- D. 128
- E. None of the above Discuss
- 7. What logic function is produced by adding an inverter to the output of an AND gate?
Options- A. NAND
- B. NOR
- C. XOR
- D. OR
- E. None of the above Discuss
- 8. Conversion of an octal number 1438 to hexadecimal number is
Options- A. 6316
- B. 6016
- C. 5016
- D. 5716
- E. None of the above Discuss
- 9. The memory cell of a dynamic RAM is simpler and smaller than the memory cell of a _____ RAM.
Options- A. volatile
- B. static
- C. semiconductor
- D. bipolar
- E. None of the above Discuss
- 10. Conversion of decimal number 2810 to it's octal number equivalent is
Options- A. 328
- B. 408
- C. 348
- D. 368
- E. None of the above Discuss
Digital Computer Electronics problems
Search Results
Correct Answer: 1111000110102
Correct Answer: Carry-look-ahead adder
Correct Answer: 1111 0000 1101 0010
Correct Answer: 5E16
Correct Answer: m full adders
Correct Answer: 64
Correct Answer: NAND
Correct Answer: 6316
Correct Answer: static
Correct Answer: 348
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