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13 cards from this deck
Programs can only process data in RAM, not directly from storage
Memory: fast & temporary. Storage: permanent but can't use directly
Information about one item, stored on a separate line
Different pieces of information separated by commas within a record
Comma Separated Values
Invisible characters showing where lines end/begin
Removes invisible carriage return & line feed from line ends
Read mode (read-only)
Breaks line at commas, creates a list of separate pieces
String (text) - even numbers
Everything is initially string; need correct type for calculations
Closes file when finished to free system resources
Use 'r' not 'w' (w would overwrite file)
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