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SS 3 Computer Studies practice test

17 questions + 2 written tasks. Answers and your score show when you submit the whole test.

How it works: answer every question as you would in an exam, then submit to see the answers and your score. For written answers, compare yours with the model answer and mark it honestly: that is where the learning happens.
0 of 17 answered

  1. 1. Briefly explain system software, with two examples.

  2. 2. Briefly explain an operating system, with two examples.

  3. 3. Differentiate between serial and sequential file organisation.

  4. 4. State two differences between pseudocode and a flowchart.

  5. 5. State two differences between a LAN and a WAN.

  6. 6. List five ways of preventing computer viruses in a data processing centre.

  7. 7. What are reserved (key) words in BASIC?

  8. 8. Give two examples of reserved words in BASIC.

  9. 9. Differentiate between an on-page connector and an off-page connector in a flowchart. Describe the shape of each.

  10. 10. Briefly explain peripheral devices, with two examples.

  11. 11. What is printed by this BASIC program? 10 LET A = 5 / 20 LET B = 3 / 30 LET C = A * B - A / 40 PRINT C / 50 END (the slash separates lines)

  12. 12. Which flowchart symbol represents a decision?

  13. 13. Write pseudocode to input three numbers and output their average.

  14. 14. A school with two campuses 5 km apart wants both to use one student database. Analyse whether a LAN alone is enough and recommend a network set-up with one security measure.

  15. 15. Evaluate whether serial or sequential file organisation is better for a file of 2000 students' results that are printed in admission-number order each term.

  16. 16. Write an algorithm (pseudocode) that inputs a score and prints the grade: 70 and above A, 60–69 B, 50–59 C, 40–49 D, below 40 F.

  17. 17. (new, AI literacy) An AI assistant gave this program to print the sum of 1 to 10: 10 S = 0 / 20 FOR I = 1 TO 10 / 30 S = S + I / 40 PRINT S / 50 NEXT I / 60 END. Evaluate the program and correct it.

You can change any answer until you submit.

Written tasks

Not part of the score above. Write your answer here or on paper, then you, a parent or a teacher can mark it with the marking guide.

  1. 1. Explain five functions of an operating system and compare a desktop operating system with a mobile one. (9 marks)

  2. 2. Prepare a virus-prevention policy for your school's computer laboratory, explaining the reason for each rule. (9 marks)

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