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Daily Practice · GCSE Computer Science

February 1983 5-a-day

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February 1983

28 sheets · 140 questions · GCSE

February 1983 compilationAll answers

Every sheet in February 1983

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 1983State the term used for realistic data that a program would be expected to handle during normal use.
  2. 2nd February 1983State what a foreign key is used for.
  3. 3rd February 1983State the difference between lossy and lossless compression.
  4. 4th February 1983State the condition that must be met before a binary search can be used on an array.
  5. 5th February 1983A logic circuit has inputs C and D. C feeds into a NOT gate; the output of the NOT gate and D feed into an OR gate, giving output Y. Write the Boolean expression for Y and state its value when C = 1 and D = 0.
  6. 6th February 1983A 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.
  7. 7th February 1983Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
  8. 8th February 1983Name the translator used for assembly language and describe how it differs from a compiler.
  9. 9th February 1983Convert the denary number 45 to hexadecimal.
  10. 10th February 1983What does the acronym CPU stand for?
  11. 11th February 1983State what the term malware means.
  12. 12th February 1983Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
  13. 13th February 1983An 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).
  14. 14th February 1983Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
  15. 15th February 1983Which piece of UK legislation controls how organisations must store and use people's personal data?
  16. 16th February 1983Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
  17. 17th February 1983State the value returned by LENGTH(word) if word stores the string 'Computer'.
  18. 18th February 1983Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
  19. 19th February 1983Define the term protocol.
  20. 20th February 1983A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
  21. 21st February 1983A 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.
  22. 22nd February 1983State one function carried out by the operating system of a computer.
  23. 23rd February 1983In computational thinking, what is meant by the term 'decomposition'?
  24. 24th February 1983Given A = 1 and B = 1, state the value of A AND B.
  25. 25th February 1983State how many different values can be represented using 5 bits, and explain your reasoning.
  26. 26th February 1983Define a peer-to-peer network.
  27. 27th February 1983Explain the purpose of a breakpoint.
  28. 28th February 1983Convert the denary number 5 to a 4-bit binary number.