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Records are stored randomly but accessed directly. A record key is issued to determine where the record is stored on storage media e.g. in magnetic and optical disks.
Advantages
Records are quickly accessed
File update is easily achieved
Disadvantages
Data may be accidentally erased or overwritten unless precaution taken
Expensive hardware and software resources are required
Relative complexity of programming
System design around is complex and costly
Kavungya answered the question on April 16, 2019 at 10:03
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