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6. 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

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

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

8. 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.

9. What is stored in RAM?

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

10. Explain the purpose of RAM in a computer system

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

11. What is firmware?

  • Software to control hardware
  • Hardware to control software
  • An example of volatile hardware
  • An example of volatile software

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

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

13. 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

14. Is RAM volatile or non-volatile?

  • Volatile
  • Non-volatile

15. Is ROM volatile or non-volatile?

  • Non-volatile
  • Volatile

16. What does ROM stand for?

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