please tell me how to use personal computer.

Take a class? Read a book? Ask a friend (anyone under 40)?

Rubberman! Are you suggesting people aged over 40 don't know about computers? :-o

If you have completely no idea on how to use a computer I would suggest you do to the library and either ask for some books covering this (they excist, I work on a library) otherwise ask the staff if they want to help you out.

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