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6. Is ROM volatile or non-volatile?

  • Non-volatile
  • Volatile

7. Why would an embedded computer need RAM?

  • To store data that needs to be changed
  • So the contents are not lost when the power is turned off and so the program cannot be altered

8. Explain why programs do not run directly from secondary storage

  • Secondary storage can be removed from the computer
  • It is too slow for programs to run directly by the CPU
  • It is too small to store all the programs the CPU needs to run
  • It is too expensive

9. Explain why an embedded computer must store its program in ROM

  • So the contents are not lost when the power is turned off and so the program cannot be altered
  • Because it is a dedicated computer system so it has a specific task
  • Because the contents need to be able to be altered
  • So the contents are not lost when they are being altered

10. What is stored in RAM when a computer system is in use?

  • The BIOS and any other permanent programs or data
  • The OS (and any files it is using), any programs that are loaded by the user and any data loaded by the user
  • Any software the computer is using
  • Documents, files, webpages or any other data that are loaded by the user

11. What is meant by the term primary storage?

  • There is no direct connection to the CPU
  • It is read/write storage.
  • It is directly connected to the CPU and it is fast enough for programs to be run directly from it.
  • Non-volatile (permanent) storage where all data is stored when not in use.

12. What is stored in RAM?

  • Programs and data that are currently in use by the CPU
  • Documents and files
  • Fixed programs and data that are currently in use by the CPU
  • Programs and files

13. What does ROM stand for?

  • Read Only Memory
  • Random Offset memory
  • Read Often Memory
  • Random Only Memory

14. What does volatile mean?

  • Contents will be lost when the power turns off
  • Contents will not be lost when the power turns off

15. Describe how data is actually stored in ROM and RAM

  • Stored as binary numbers with a pattern of switches representing the binary
  • Stored as a pattern of switches representing the binary numbers
  • Stored as binary numbers with a pattern of switches in memory representing the binary numbers
  • Stored as binary numbers with a pattern of switches in memory

16. Explain the purpose of RAM in a computer system

  • Execute instructions
  • Store data and programs that the CPU is using while programs are running
  • Process instructions from the CPU
  • Temporarily store instructions and data being used by the CPU