Computer System Architecture

671. In register stack the top item is read from the stack into:

  1. SR
  2. IR
  3. RR
  4. DR

Correct answer: (D)
DR

672. In conversion to reverse polish notation the ____________ and ____________ operations are performed at the end:

  1. Add and subtract
  2. Subtract and multiplication
  3. Multiplication and subtract
  4. All of these

Correct answer: (A)
Add and subtract

673. RPN stands for:

  1. Reverse polish notation
  2. Read polish notation
  3. Random polish notation
  4. None of these

Correct answer: (A)
Reverse polish notation

674. Instruction formats contains the memory address of the ____________:

  1. Memory data
  2. Main memory
  3. CPU
  4. ALU

Correct answer: (B)
Main memory

675. In instruction formats instruction is represent by a ____________ of bits:

  1. Sequence
  2. Parallel
  3. Both
  4. None

Correct answer: (A)
Sequence

676. In instruction formats the information required by the ____________ for execution:

  1. ALU
  2. CPU
  3. RISC
  4. DATA

Correct answer: (B)
CPU

677. The operation is specified by a binary code known as the ____________:

  1. Operand code
  2. Opcode
  3. Source code
  4. All of these

Correct answer: (B)
Opcode

678. Which are contains one or more register that may be referenced by machine instruction:

  1. Input
  2. Output
  3. CPU
  4. ALU

Correct answer: (C)
CPU

679. Memory –mapped ____________ is used this is just another memory address:

  1. Input
  2. Output
  3. Both
  4. None

Correct answer: (C)
Both

680. Which operation use one operand or unary operations:

  1. Arithmetic
  2. Logical
  3. Both
  4. None

Correct answer: (C)
Both

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