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Olympiad (Class 5) Computer Memory — practice questions — page 2

Explore 40 free Computer Memory questions in Olympiad (Class 5) Computer Science. Open each question or exercise to read its content, reference answers and available explanation.

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Computer Memory questions and exercises with answers

Showing questions 31–40 of 40.

Which pair is usually called storage rather than memory?Read the answer and worked solution →Battery-backed RAM keeps data after mains failure but may lose it whenRead the answer and worked solution →Which kind of software do standard computers mainly keep in ROM?Read the answer and worked solution →Processor registers are located inside theRead the answer and worked solution →In a two-level cache, which level is the smallest and fastest?Read the answer and worked solution →Which order runs fastest to slowest?Read the answer and worked solution →Tertiary access takes 5 to 60 seconds. Secondary access takes aboutRead the answer and worked solution →At start-up, the boot program loads a larger program intoRead the answer and worked solution →Spare RAM that programs do not need is borrowed by the operating system forRead the answer and worked solution →Why is offline storage handy for moving files between computers?Read the answer and worked solution →

Worked practice questions

Which pair is usually called storage rather than memory?

  1. Disk and DVD drive
  2. RAM and cache
  3. Cache and SRAM
  4. DRAM and SRAM
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Correct answer: A. Disk and DVD drive

Storage means devices the CPU cannot reach directly, like hard disks and optical drives.

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Battery-backed RAM keeps data after mains failure but may lose it when

  1. the screen is off
  2. its battery runs out
  3. a file is renamed
  4. the mouse is unplugged
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Correct answer: B. its battery runs out

The battery only keeps the RAM powered, so a long outage that drains it causes data loss.

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Which kind of software do standard computers mainly keep in ROM?

  1. Games
  2. Photos
  3. Firmware
  4. Documents
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Correct answer: C. Firmware

ROM is slow to write, so it holds rarely changed startup code like firmware.

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