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Describe types of files

      

Describe types of files

  

Answers


Steve
Master file:Main file that contains permanent data against which transactions are processed.
Transaction/movement files:Includes input and output files for holding temporary incoming and outgoing data.Used to update dynamic data on master files.
Reference file:It’s a file with a reasonable amount of permanency.Used for look up or reference purposes e.g. P.A.Y.E deductions.
Report file:Set of records extracted from data in master file used to prepare report which can be printed at a later date.Stores relatively permanent records extracted from the master files or generated after processing.
Back up/History file:Holds copies of data or information from computer storage and retain for historical use or back up.
Dump/work file:Used to hold data for security and recovery purposes or for temporary storage whilst other work is being carried out e.g. total earnings and deductions calculations (payroll processing).

Sort file
Mainly used where data is to be processed sequentially in a sequential process

Steve ju answered the question on June 6, 2018 at 20:40


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