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utility application - Coggle Diagram

- - - - types of backup
        
        full backup
        
        everything stored is copied differential backup
        
        differential backup
        
        oly files that have changed since last backup
        
        incremental backup
        
        same as above but could be based on full backup also
        
        journal file
        
        a record of operations since last packup
        
        hard copy
        
        a paper copy of a document