Discussion
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- Question
When referring to instruction words, a mnemonic is:
Options- A. a short abbreviation for the operand address
- B. a short abbreviation for the operation to be performed
- C. a short abbreviation for the data word stored at the operand address
- D. shorthand for machine language
- Correct Answer
- a short abbreviation for the operation to be performed
- 1. How many buses are connected as part of the 8085 microprocessor?
Options- A. 2
- B. 3
- C. 5
- D. 8 Discuss
- 2. The technique of assigning a memory address to each I/O device in the SAM system is called:
Options- A. wired I/O
- B. I/O mapping
- C. dedicated I/O
- D. memory-mapped I/O Discuss
- 3. What is the difference between mnemonic codes and machine codes?
Options- A. There is no difference.
- B. Machine codes are in binary, mnemonic codes are in shorthand English.
- C. Machine codes are in shorthand English, mnemonic codes are in binary.
- D. Machine codes are in shorthand English, mnemonic codes are a high-level language. Discuss
- 4. Exceptions to the 8085 microprocessor normal operation are called:
Options- A. jump instructions
- B. decoding
- C. interrupts
- D. jump instructions or interrupts Discuss
- 5. Which of the following is not a computer bus?
Options- A. data bus
- B. timer bus
- C. control bus
- D. address bus Discuss
- 6. Which bus is bidirectional?
Options- A. data bus
- B. control bus
- C. address bus
- D. multiplexed bus Discuss
- 7. The software used to drive microprocessor-based systems is called:
Options- A. assembly language programs
- B. firmware
- C. BASIC interpreter instructions
- D. flowchart instructions Discuss
- 8. Kirchhoff's voltage law states that:
Options- A. the sum of the voltage drops in a series circuit is equal to the total applied voltage
- B. the algebraic sum of the resistances is equal to the sum of the voltages
- C. the algebraic sum of the individual currents around a closed loop is zero
- D. the voltages developed across each element in a series circuit are identical Discuss
- 9. A series circuit current:
Options- A. remains the same through each component
- B. is the same as the individual resistances
- C. is subtracted by each component
- D. varies through each component Discuss
- 10.
How much current flows in the circuit in the given circuit?
Options- A. 20 µA
- B. 60 µA
- C. 80 µA
- D. 140 µA Discuss
Computer Hardware and Software problems
Search Results
Correct Answer: 3
Correct Answer: memory-mapped I/O
Correct Answer: Machine codes are in binary, mnemonic codes are in shorthand English.
Correct Answer: jump instructions or interrupts
Correct Answer: timer bus
Correct Answer: data bus
Correct Answer: assembly language programs
Correct Answer: the sum of the voltage drops in a series circuit is equal to the total applied voltage
Correct Answer: remains the same through each component
Correct Answer: 20 µA
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