• Data is used to describe facts about something.
• When data is stored electronically in a file, it can be used as input.
• There are four common types of files where data can be stored:
  • Document Files such as memos, term papers, and letters created by a word processor.
  • Worksheet Files such as budget and sales forecasts created by an electronic spreadsheet.
  • Database Files such as employee and customer records created by a database management system.
  • Presentation Files such as slides and handouts created by a presentation graphic program.

          

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