Digital Computer Electronics problems
- 1. Which of the following is not functionally a complete set?
Options- A. AND, OR
- B. NAND
- C. NOR
- D. AND, OR, NOT
- E. None of the above Discuss
Correct Answer: AND, OR
- 2. A binary adder is a logic circuit that can add _____ binary numbers at a time.
Options- A. Hundreds
- B. Thousands
- C. One
- D. Two
- E. None of the above Discuss
Correct Answer: Two
- 3. Names, numbers, and other information needed to solve a problem are called _____
Options- A. program
- B. instruction
- C. data
- D. controls
- E. None of the above Discuss
Correct Answer: data
- 4. The main advantage of hexadecimal numbers is the case of conversion from hexadecimal to _____ and vice versa.
Options- A. decimal
- B. binary
- C. ASCE
- D. BCD
- E. None of the above Discuss
Correct Answer: binary
- 5. A combinational logic circuit which generates particular binary word or number is
Options- A. decoder
- B. multiplexer
- C. encoder
- D. demultiplexer
- E. None of the above Discuss
Correct Answer: multiplexer
- 6. The logic 1 in positive logic system is represented by:
Options- A. zero voltage
- B. lower voltage level
- C. higher voltage level
- D. negative voltage
- E. None of the above Discuss
Correct Answer: higher voltage level
- 7. A multiplexer is also known as
Options- A. coder
- B. decoder
- C. data selector
- D. multivibrator
- E. None of the above Discuss
Correct Answer: data selector
- 8. Cyclic codes are used in
Options- A. data transfer
- B. continuously varying signal representation
- C. arithmetic and logical computation
- D. All of the above
- E. None of the above Discuss
Correct Answer: continuously varying signal representation
- 9. Conversion of binary number 1100002 to hexadecimal is
Options- A. 3016
- B. 4016
- C. 4316
- D. 2716
- E. None of the above Discuss
Correct Answer: 3016
- 10. The number of two-input NAND gates required to produce the two-input OR function is
Options- A. 1
- B. 2
- C. 3
- D. 4
- E. None of the above Discuss
Correct Answer: 3
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