The five basic stages of information processing are

  1. Collection of Data -- capturing data from their sources and recording it onto some media (e.g., paper).

  2. Preparation of Data -- copying, grouping, or arranging data in a more convenient way for input.

    Checking and verifying the data collected are often done at this stage.

  3. Input of Data -- entering the data or sending the stored data into the processing system.

    Checking the accuracy and validity of the input data are often done at this stage.

  4. Processing of Data -- calculating or manipulating the input data and even storing the results for future use.

  5. Output of Information -- giving out the processed results in a readable form (e.g., a report).