"Students decide to collect money each week for social service."
"They use a spreadsheet to monitor the collection."
"Jenny acquires data each week by recording on paper the amount raised and the date."
Input
"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
"Output in the form of a printout is obtained at the end of each month."
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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