Dirty Environments and Computer Maintenance
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Questions and Answers

What is one preventive measure to protect computer systems in dirty environments?

  • Increasing the temperature of the room
  • Covering the computer with a cloth
  • Using scented candles in the room
  • Using an air cleaner in the room (correct)

What is recommended for computer systems used in industrial environments?

  • Minimal cleaning to avoid damage
  • Use of scented cleaning products
  • No special treatment required
  • Regular cleaning and protection (correct)

What is advised for computer hardware in industrial environments?

  • Using decorative covers for aesthetic appeal
  • Using special cases and enclosures designed for industrial environments (correct)
  • Applying colorful stickers for identification
  • Leaving the hardware exposed for better ventilation

What happens to the inside of a system unit in an industrial environment?

<p>It accumulates a significant amount of dirt (D)</p> Signup and view all the answers

What is emphasized for computers operating in dirty environments?

<p>Regular cleaning as part of routine preventive maintenance (C)</p> Signup and view all the answers

What is the result of electromagnetic interference (EMI) on electronic devices?

<p>Data loss, picture quality degradation, and other problems (C)</p> Signup and view all the answers

What does Class B compliance with the Federal Communications Commission (FCC) certification indicate for a PC?

<p>Conformance to standards that limit EMI production (C)</p> Signup and view all the answers

How can electromagnetic interference affect PCs from other devices?

<p>Direct effects through proximity and electrical interference over power lines (C)</p> Signup and view all the answers

What is the purpose of keeping metal covers on the computer in relation to EMI?

<p>To absorb EMI (C)</p> Signup and view all the answers

What is the significance of PCs being certified as Class B compliant with FCC for EMI?

<p>It shows conformity to standards that limit EMI production (C)</p> Signup and view all the answers

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