Exam style questions

• Explain why ROM is used in personal computers:

  • ROM is used for storing the boot loader and BIO.
  • These load the operating system from secondary storage and check the system for errors
• What’s the difference between ROM and RAM?

  ROM: Read-Only Memory (non-volatile, stores permanent data) RAM: Random Access Memory (volatile, stores temporary data for processing)
• why might someone’s data be lost if they turn off their computer while a document is still open?

  • The document was saved in RAM and not secondary storage
  • RAM is volatile