Start learning →

Olympiad (Class 6) Memory and Storage — practice questions — page 2

Explore 43 free Memory and Storage questions in Olympiad (Class 6) Computer Science. Open each question or exercise to read its content, reference answers and available explanation.

Practise Memory and Storage with Quill →

Memory and Storage questions and exercises with answers

Showing questions 31–43 of 43.

Most types of ROM are not literally read only. What is true of writing to them?Read the answer and worked solution →Some embedded systems run programs directly from ROM because such programs areRead the answer and worked solution →Before semiconductor chips became cost-competitive in the 1970s, which type of main memory was dominant?Read the answer and worked solution →In everyday computing terms, which is usually called memory rather than storage?Read the answer and worked solution →A small device between the CPU and RAM recalculates the actual memory address. It is theRead the answer and worked solution →To read a memory location, the CPU first sends its address along which path?Read the answer and worked solution →In what units is data on a hard disk usually addressed?Read the answer and worked solution →Which software layer organizes data on a disk into files and directories?Read the answer and worked solution →Using several disks in parallel, as RAID does, helps reduce theRead the answer and worked solution →A flash chip is left in a hot car. How does its rate of data loss change as it heats up?Read the answer and worked solution →Compared with main memory, processor cache isRead the answer and worked solution →In a multi-level cache setup, which level is the smallest and fastest?Read the answer and worked solution →An operating system finds RAM that no running program needs. What does it use it for?Read the answer and worked solution →

Worked practice questions

Most types of ROM are not literally read only. What is true of writing to them?

  1. It is difficult and slow
  2. It is impossible
  3. It is faster than RAM
  4. It happens every second
Show answer and solution

Correct answer: A. It is difficult and slow

Most ROM types can be written, but only with difficulty and slowly, which is why the name is only roughly accurate.

Open this question →

Some embedded systems run programs directly from ROM because such programs are

  1. edited every day
  2. rarely changed
  3. very large
  4. stored on paper
Show answer and solution

Correct answer: B. rarely changed

ROM is hard to rewrite, so it suits programs that almost never change.

Open this question →

Before semiconductor chips became cost-competitive in the 1970s, which type of main memory was dominant?

  1. SRAM chips
  2. Optical discs
  3. Flash memory
  4. Core memory
Show answer and solution

Correct answer: D. Core memory

Magnetic-core memory replaced unreliable early methods by 1954 and stayed dominant until semiconductor memory became economical.

Open this question →

How to practise

  1. Choose a Memory and Storage question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

Put it into practice

Continue with Memory and Storage practice for Olympiad (Class 6). Read explanations as you go. No signup form needed to start.

Practise Memory and Storage →

More Computer Science topics

HTML, CSS and ScratchNetworking and cyber safetyComputer fundamentals, history and generationsWindows 11, MS Word and MS PowerPoint