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  • Question
  • A register in the microprocessor that keeps track of the answer or results of any arithmetic or logic operation is the _________.


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

  • Correct Answer
  • accumulator 


  • Computer Hardware and Software problems


    Search Results


    • 1. The register in the 8085 microprocessor that is used to keep track of the memory address of the next opcode to be run in the program is the ________.

    • Options
    • A. stack pointer
    • B. program counter
    • C. instruction pointer
    • D. accumulator
    • Discuss
    • 2. The control bus and memories share a bidirectional bus in a typical microprocessor system.

    • Options
    • A. True
    • B. False
    • Discuss
    • 3. To keep the number of IC pins to a minimum, the 8085 uses a multiplexed bus.

    • Options
    • A. True
    • B. False
    • Discuss
    • 4. It takes two memory locations (16 bits each) to store an address in the 8085 system.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. A compiler is a translation program that converts high-level instructions into a set of binary instructions (machine code) for execution.

    • Options
    • A. True
    • B. False
    • Discuss
    • 6. Since microprocessor CPUs do not understand mnemonics as they are, they have to be converted into __________.

    • Options
    • A. hexadecimal machine code
    • B. high-level language
    • C. assembly language
    • D. hexadecimal machine code and assembly language
    • Discuss
    • 7. The first part of a machine language instruction that specifies the operation to be performed is called a(n) __________.

    • Options
    • A. mnemonic
    • B. opcode
    • C. interrupt
    • D. instruction cycle
    • Discuss
    • 8. The __________ program is used to convert mnemonic code to machine code.

    • Options
    • A. debug
    • B. C++
    • C. fortran
    • D. assembler
    • Discuss
    • 9. The circuits in the 8085 that provide the arithmetic and logic functions are called the __________.

    • Options
    • A. CPU
    • B. ALU
    • C. I/O
    • D. bus decoder
    • Discuss
    • 10. A(n) ________________ is the time it takes a microprocessor to fetch and execute a complete instruction.

    • Options
    • A. instruction cycle
    • B. machine cycle
    • C. timing cycle
    • D. write cycle
    • Discuss


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