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i) Report file- It contains a set of relatively permanent records extracted from the data in a master file.
They are used to prepare reports, which can ve printed at a later date, e.g. report on student’s class performance in the term, extract of students who have not cleared their school fees, report on absentees.
ii) Backup file- Used to backup data or to hold duplicate copies of data/information from the computer’s fixed storage or main file for security purposes e.g. a copy of all the students admitted in a school fees, report on absentees
iii) Reference file - Used for reference purposes. It contains records that are fairly permanent or semi-permanent, e.g. Deductions in caution money, wage rates, tax deductions, employees address, price lists etc.
iv) Sort file – used to sort/rank data according to a given order, e.g. ranking position in a class of students.
Kavungya answered the question on June 6, 2019 at 07:03
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