State two disadvantages of random file organization method as used in microcomputers.
Answer:
- Data could easily be lost due to accidental erasure.
- Records may be exposed to risk such as loss of integrity, viral attack and breach of security.
- It is difficult to write programs that handle random files.
- Waste storage space if the file is partially populated.
- It is prone to disk fragmentation hence requires frequent defragmentation.
- Records may be exposed to risk such as loss of integrity, viral attack and breach of security.
- It is difficult to write programs that handle random files.
- Waste storage space if the file is partially populated.
- It is prone to disk fragmentation hence requires frequent defragmentation.
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State four ways in which a computer user can protect the eyes from damage caused by computer radiation. 
