Digital Computer Electronics problems
- 1. The maximum number of TTL loads that a TTL device can drive reliably over the specified temperature range is
Options- A. fanout
- B. bipolar
- C. chip
- D. universal logic circuit
- E. None of the above Discuss
Correct Answer: fanout
- 2. What advantages do ICs have over discrete-device circuits due to their greater complexity (i.e. more circuitary in less area)
Options- A. Smaller size
- B. Higher reliability
- C. Lower cost
- D. All of the above
- E. None of the above Discuss
Correct Answer: All of the above
- 3. With positive clocking the clock signal must be _____ for the flip-flop to respond.
Options- A. high
- B. low
- C. set
- D. race
- E. None of the above Discuss
Correct Answer: high
- 4. The ASCII code is a 7-bit code for
Options- A. letters
- B. numbers
- C. other symbols
- D. All of the above
- E. None of the above Discuss
Correct Answer: All of the above
- 5. Conversion of binary number 1100012 to its decimal number is
Options- A. 2710
- B. 4910
- C. 3910
- D. 5010
- E. None of the above Discuss
Correct Answer: 4910
- 6. If a microcomputer has a 64K memory, what are the hexadecimal notations for the first and last memory location?
Options- A. 0000, EEEE
- B. 0, 64
- C. 0000, FFFF
- D. 0000, 9999
- E. None of the above Discuss
Correct Answer: 0000, FFFF
- 7. The EXCLUSIVE - NOR gate is equivalent to an _____ gate followed by an invertor.
Options- A. OR
- B. AND
- C. NAND
- D. XOR
- E. None of the above Discuss
Correct Answer: XOR
- 8. The control and arithmetic-logic sections are called the _____
Options- A. Block diagram
- B. Control Unit
- C. Input / Output Unit
- D. Central Processing Unit
- E. None of the above Discuss
Correct Answer: Central Processing Unit
- 9. The 2's compliment of binary number 010111.1100 is
Options- A. 101001.1100
- B. 101000.0100
- C. 010111.0011
- D. 101000.0011
- E. None of the above Discuss
Correct Answer: 101000.0100
- 10. Conversion of binary number 10100002 to an octal number is
Options- A. 1198
- B. 1018
- C. 1118
- D. 1208
- E. None of the above Discuss
Correct Answer: 1208
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