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Daily Practice · GCSE Computer Science

June 1988 5-a-day

← Today's GCSE Computer Science sheet

June 1988

30 sheets · 150 questions · GCSE

June 1988 compilationAll answers

Every sheet in June 1988

The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.

  1. 1st June 1988What does the acronym CPU stand for?
  2. 2nd June 1988State what the term malware means.
  3. 3rd June 1988A 2D array grid is declared as grid[4][6]. State how many rows and columns it has and how many elements it holds in total.
  4. 4th June 1988An uncompressed file is 6000 KB. After lossless compression it is 1500 KB. Calculate the compression ratio in the form n:1 (original size : compressed size).
  5. 5th June 1988Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  6. 6th June 1988Which piece of UK legislation controls how organisations must store and use people's personal data?
  7. 7th June 1988Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  8. 8th June 1988A function is defined as: FUNCTION addTax(price) RETURN price x 1.2 ENDFUNCTION. Another line of code runs: total <- addTax(20) + addTax(30). Trace both function calls and state the final value of total.
  9. 9th June 1988Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  10. 10th June 1988State the layer that IP operates in, and describe its job.
  11. 11th June 1988A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  12. 12th June 1988A table called staff has fields staffId, name, department and salary, storing these records: staffId | name | department | salary, 1 | Ben | Sales | 24000, 2 | Chloe | IT | 31000, 3 | Dan | Sales | 27000. State which staffId(s) would be returned by: SELECT staffId FROM staff WHERE department = 'Sales' AND salary > 25000;
  13. 13th June 1988State one function carried out by the operating system of a computer.
  14. 14th June 1988In computational thinking, what is meant by the term 'decomposition'?
  15. 15th June 1988Given A = 1 and B = 1, state the value of A AND B.
  16. 16th June 1988Convert the 8-bit binary number 01011010 to denary.
  17. 17th June 1988Define a peer-to-peer network.
  18. 18th June 1988Describe what syntax highlighting is and how it helps a programmer.
  19. 19th June 1988Convert the denary number 5 to a 4-bit binary number.
  20. 20th June 1988A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  21. 21st June 1988A simple cipher shifts every letter 2 places forward in the alphabet, wrapping around so Y becomes A and Z becomes B. Encrypt the plaintext CAT using this cipher.
  22. 22nd June 1988Trace this algorithm with data = [4, 9, 2, 9, 7] and state the final output. total = 0; count = 0; for i = 0 to 4: if data[i] > 5 then total = total + data[i] and count = count + 1; next i; print(total, count).
  23. 23rd June 1988A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  24. 24th June 1988State the type of program that is typically stored in ROM.
  25. 25th June 1988State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
  26. 26th June 1988A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
  27. 27th June 1988Write the pseudocode header and body for a function called isAdult that takes one integer parameter called age and returns True if age is 18 or over.
  28. 28th June 1988State the typical maximum capacity of a single-layer DVD.
  29. 29th June 1988Explain the role of TCP when a large file is downloaded.
  30. 30th June 1988State what is meant by a syntax error.