What are the main components of a computer system? Your response should contain at least 4 sentences. Your answer must contain a title, wrapped in double angular brackets, such as <<Understanding the Components of a Computer System>>. In your response, the word "components" should appear at least 3 times. Highlight at least 2 sections in your answer with markdown, i.e. *highlighted section*. At the end of your response, please explicitly add a postscript starting with "P.S."

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