Introduction to Information Systems: Seventh Edition
Introduction to Information Systems: Seventh Edition
7th Edition
ISBN: 9781119362913
Author: Rainer
Publisher: John Wiley & Sons Inc
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Chapter TG.1, Problem 2PSA

Explanation of Solution

Instruction:

When a command is given to the computer by the user is called as instruction.

Machine Instruction cycle:

  • Computer processor processes certain steps for the instructions that are received in the form of machine instructions.
  • The instructions that are received are processed in step by step manner based on the direction that is received from the control unit.
  • Machine instruction cycle consists of different phases in reading, interpreting the instructions that are received in the form of machine language, executing the instruction code and finally storing that code.
  • The below are the four steps of the machine instruction cycle
    • Fetch
    • Decode
    • Execute
    • Store
  • The above mentioned steps are carried out in a repeated way to complete the instruction that is given to the computer.
  • The entire process is carried out using a microprocessor.

Working of the machine cycle:

  • The instruction from the main memory is being fetched.
  • The instruction that is fetched from the memory gets decoded in the control unit.
  • The decoded instruction gets executed in the Arithmetic Logic unit.
  • After execution, the results are being stored back in to the main memory...

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