Revision Library
/Subjects/Computer Science/Daily Practice
Daily Practice · GCSE Computer Science

February 1993 - GCSE Computer Science 5-a-day

← Today's GCSE Computer Science sheet

February 1993

28 sheets · 140 questions · GCSE

February 1993 compilationAll answers

Every sheet in February 1993

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

  1. 1st February 1993A pseudocode algorithm is: count <- 0, x <- 10, WHILE x > 0, count <- count + 1, x <- x - 3, ENDWHILE, OUTPUT count. Complete a trace table for x and count, laid out as x | count, then state the value output.
  2. 2nd February 1993Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  3. 3rd February 1993State why a program written in a high level language must be translated.
  4. 4th February 1993Convert the denary number 45 to hexadecimal.
  5. 5th February 1993What does the acronym CPU stand for?
  6. 6th February 1993State what the term malware means.
  7. 7th February 1993Describe what a nested loop does when it processes a 2D array.
  8. 8th February 1993An 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).
  9. 9th February 1993Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  10. 10th February 1993Which piece of UK legislation controls how organisations must store and use people's personal data?
  11. 11th February 1993Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  12. 12th February 1993State the value returned by LENGTH(word) if word stores the string 'Computer'.
  13. 13th February 1993Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  14. 14th February 1993Give two reasons why network communication is divided into layers.
  15. 15th February 1993A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  16. 16th February 1993A table called books has fields bookId, title, authorId and copiesAvailable. Write an SQL statement that selects the title of every book with more than 2 copies available.
  17. 17th February 1993State one function carried out by the operating system of a computer.
  18. 18th February 1993In computational thinking, what is meant by the term 'decomposition'?
  19. 19th February 1993Given A = 1 and B = 1, state the value of A AND B.
  20. 20th February 1993State how many different values can be represented using 5 bits, and explain your reasoning.
  21. 21st February 1993Define a peer-to-peer network.
  22. 22nd February 1993Explain why an interpreter is often preferred while a program is being written.
  23. 23rd February 1993Convert the denary number 5 to a 4-bit binary number.
  24. 24th February 1993A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
  25. 25th February 1993A 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.
  26. 26th February 1993A 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.
  27. 27th February 1993A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
  28. 28th February 1993State the type of program that is typically stored in ROM.