4.1.2

Input-Process-Output Model

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Input-Process-Output Model

The input-process-output model is an abstraction of a computer system.

Illustrative background for The modelIllustrative background for The model ?? "content

The model

  • There are four states in the model:
    • Inputs.
    • Processes.
    • Storage.
    • Outputs.
Illustrative background for Data pathsIllustrative background for Data paths ?? "content

Data paths

  • Data will first be created as input, either from a user or from some sensor.
  • This data can then be processed along with any other data that is held in the storage. It may itself be stored.
  • Once processing is complete, the output is given to the user.
  • Sometimes a feedback process may occur, and the outputs will be passed back to the model as an input.
Illustrative background for AlgorithmsIllustrative background for Algorithms ?? "content

Algorithms

  • Algorithms can be planned more easily using this model.
  • The inputs, processes and outputs can be identified from a problem statement.
  • The processes can then be decomposed before an algorithm is written.

Jump to other topics

1Problem Solving

2Programming

3Data

4Computers

5Communication & The Internet

6The Bigger Picture

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