A computer system can be represented in either a logical or physical form. Both useful are in understanding computer system theory.

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Logical Representation Vs Physical System

  • A computer system can be represented in either a logical or physical form.
  • Both useful are in understanding computer system theory.

      Physical

  •  The actual hardware as seen in the real life
  • Contains micro-electrons & physical mechanisms
  • Power by electricity
  • Very detailed & complex
  • Difficult to fully understand without a working knowledge of  electronics

Logical

  • A basic model of computer system
  • The model is built from a number of different blocks
  • Each block performs a different task
  • All blocks work together to process data into information
  • Model is conceptual

Input                                                                    Output                  

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Mouse                                                                   Printer

Keyboard                                                               Monitor

Microphone                                                          Speakers

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