Microprocessor Fundamentals problems
- 1. Because microprocessor CPUs do not understand mnemonics as they are, they have to be converted to ________.
Options- A. hexadecimal machine code
- B. binary machine code
- C. assembly language
- D. all of the above Discuss
Correct Answer: binary machine code
- 2. What is the difference between a mnemonic code and machine code?
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. Discuss
Correct Answer: Machine codes are in binary, mnemonic codes are in shorthand English.
- 3. Which of the following buses is primarily used to carry signals that direct other ICs to find out what type of operation is being performed?
Options- A. data bus
- B. control bus
- C. address bus
- D. address decoder bus Discuss
Correct Answer: control bus
- 4. How many bits are used in the data bus?
Options- A. 7
- B. 8
- C. 9
- D. 16 Discuss
Correct Answer: 8
- 5. The control bus and memories share a bidirectional bus in a typical microprocessor system.
Options- A. True
- B. False Discuss
Correct Answer: False
- 6. A microprocessor with the necessary support circuits will include at least two memory ICs: ROM or EPROM, and a RAM.
Options- A. True
- B. False Discuss
Correct Answer: True
- 7. LDA addr and STA addr are Fortran language instructions stored in an external memory IC for a microprocessor.
Options- A. True
- B. False Discuss
Correct Answer: False
- 8. Conversion from assembly language to machine language can be done by the programmer through a process called hand assembly.
Options- A. True
- B. False Discuss
Correct Answer: True
- 9. I/O-mapped systems identify their input and output devices by giving them an 8-bit port number.
Options- A. True
- B. False Discuss
Correct Answer: True
- 10. The software used to drive a microprocessor-based system is called FORTRAN.
Options- A. True
- B. False Discuss
Correct Answer: False
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