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CCEA A-Level Digital Technology AS 2 Fundamentals of Digital Technology overview quiz quiz

16questions. Pick an answer and you'll see why right away.

  1. What is the denary value of the 8-bit binary number 00101010?

  2. How many binary bits does one hexadecimal digit represent?

  3. Which hexadecimal value equals denary 255?

  4. Which character set is needed to represent characters from many of the world's writing systems, including emoji?

  5. In the fetch-decode-execute cycle, which register holds the address of the next instruction to fetch?

  6. Which bus carries read and write control signals between the CPU and memory?

  7. Why can a larger cache improve CPU performance?

  8. Which statement about RAM is correct?

  9. Which storage technology stores data as charge in flash memory cells with no moving parts?

  10. Which of these is an example of application software?

  11. Which of the following is a function of an operating system?

  12. Which user interface is most suitable for a beginner using a home computer?

  13. Which is a principle of good user interface design?

  14. What is the difference between data and information?

  15. A check that ensures an entered month lies between 1 and 12 is an example of which validation check?

  16. Which statement about validation and verification is correct?