Tuesday, February 24, 2009

Steps for Information Processing

Acquisition-
‘‘Students decide to collect money each week for social service’’
‘' Jenny acquires data each week by recording on paper the amount raised and the date’’
Input-
‘’They use a spreadsheet to monitor the collection’’
‘’ She then inputs this data into the spreadsheet using the keyboard’’
Validation-
‘‘The data is validated by inbuilt formulas that check the amount is reasonable’’
Manipulation-
‘‘The data for each week is manipulated using a formula to total the amounts’’
Storage-
‘‘The file is saved to the hard drive after processing’’
Retrieval-
‘‘On the next collection day, the file is retrieved and new data added’’
Output-
‘‘On the next collection day, the file is retrieved and new data added’’
Communication-
‘‘Copies are printed, communicating the information to all students by hand’’
Disposal-
‘‘At the end of the year, when the file is no longer needed, Jenny deletes the file from her computer’’

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