Digital Computer Electronics problems
- 1. 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
Correct Answer: NAND
- 2. 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
Correct Answer: 6316
- 3. 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
Correct Answer: static
- 4. 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
Correct Answer: 348
- 5. The number of binary bits required to represent a hexadecimal digit is
Options- A. 3
- B. 4
- C. 6
- D. 8
- E. None of the above Discuss
Correct Answer: 4
- 6. Conversion of an octal number 31378 to it's decimal equivalent is
Options- A. 163110
- B. 163210
- C. 153110
- D. 193110
- E. None of the above Discuss
Correct Answer: 163110
- 7. Why are digital circuits easier to design than analog circuits?
Options- A. they do not control electricity precisely over a wide range
- B. they are made in the form of ICs
- C. all elements of digital circuit are from the same family
- D. they are smaller in size
- E. None of the above Discuss
Correct Answer: they do not control electricity precisely over a wide range
- 8. A _____ is a group of devices that store digital data.
Options- A. circuits
- B. register
- C. variations
- D. bit
- E. None of the above Discuss
Correct Answer: register
- 9. A microprocessor has memory locations from 0000 to 3FFF. Each memory location stores 1 byte. How bytes can the memory store? Express this in kilobytes?
Options- A. 4,095, 4K
- B. 16,384, 16K
- C. 32,740, 32K
- D. 46,040, 46K
- E. None of the above Discuss
Correct Answer: 16,384, 16K
- 10. Conversion of hexadecimal number 6B216 to it's binary number equivalent is
Options- A. 11110001101112
- B. 0110101100102
- C. 01100110011112
- D. 111111112
- E. None of the above Discuss
Correct Answer: 0110101100102
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