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  • Question
  • The register in the 8085A that is used to keep track of the memory address of the next op-code to be run in the program is the:


  • Options
  • A. stack pointer
  • B. program counter
  • C. instruction pointer
  • D. accumulator

  • Correct Answer
  • program counter 


  • Microprocessor Fundamentals problems


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    • 1. The circuits in the 8085A that provide the arithmetic and logic functions are called the:

    • Options
    • A. CPU
    • B. ALU
    • C. I/O
    • D. none of the above
    • Discuss
    • 2. What type of circuit is used at the interface point of an input port?

    • Options
    • A. decoder
    • B. latch
    • C. tristate buffer
    • D. none of the above
    • Discuss
    • 3. All computer programs for a machine are called:

    • Options
    • A. software
    • B. firmware
    • C. hardware
    • D. none of the above
    • Discuss
    • 4. The technique of assigning a memory address to each I/O device in the computer system is called:

    • Options
    • A. memory-mapped I/O
    • B. ported I/O
    • C. dedicated I/O
    • D. wired I/O
    • Discuss
    • 5. When was the first 8-bit microprocessor introduced?

    • Options
    • A. 1969
    • B. 1974
    • C. 1979
    • D. 1985
    • Discuss
    • 6. Single-bit indicators that may be set or cleared to show the results of logical or arithmetic operations are the:

    • Options
    • A. flags
    • B. registers
    • C. monitors
    • D. decisions
    • Discuss
    • 7. Which of the following are the three basic sections of a microprocessor unit?

    • Options
    • A. operand, register, and arithmetic/logic unit (ALU)
    • B. control and timing, register, and arithmetic/logic unit (ALU)
    • C. control and timing, register, and memory
    • D. arithmetic/logic unit (ALU), memory, and input/output
    • Discuss
    • 8. The software used to drive microprocessor-based systems is called:

    • Options
    • A. assembly language
    • B. firmware
    • C. machine language code
    • D. BASIC interpreter instructions
    • Discuss
    • 9. What kind of computer program is used to convert mnemonic code to machine code?

    • Options
    • A. debug
    • B. assembler
    • C. C++
    • D. Fortran
    • Discuss
    • 10. 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
    • Discuss


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