Full IGCSE Computer Science 0478 February /March 2025 /22 Paper 2 | Solved paper

Hey everyone! Hope you're doing great. Today we tackled **0478 Paper 22 (Feb/March 2025)** for Computer Science — covering **algorithms, programming, and logic** in 1 hour 45 minutes for 75 marks. Remember: use a black or dark blue pen (pencil for diagrams only), no erasable ink, no correction fluid, and no brand names. We started with **multiple-choice**: - **Q1**: Data search in array — chose **Linear Search (C)** - **Q2**: Save hotel name — correct answer: **WriteFile hotels.txt, name (B)** Then moved to **Software Development Life Cycle**: - **Testing**: Check if it works - **Analysis**: Understand the problem - **Coding**: Write the program - **Design**: Use flowcharts or pseudocode **Validation checks**: - **Presence Check**: Field isn’t blank - **Type Check**: Input must be integer Wrote a **loop** to re-enter input until it’s a whole number using `mod number, 1`. **Test data types**: - **Abnormal**: "ABC" — too short - **Boundary**: 9 characters - **Normal**: More than 9 characters **Pseudocode debugging**: We fixed 5 key issues in a loop handling 1000 inputs: 1. `highest` was a string — should be an integer 2. Wrong initial value for `highest` 3. Added `count` instead of `numbers[count]` 4. Compared with `total` instead of `highest` 5. Incorrect average calculation Fixed average output with: ```pseudo OUTPUT "Average is ", ROUND(total / 1000, 2) ``` ### **Part C: Add Smallest Number Tracking** To also find the **smallest number**, I would: 1. **Declare** a new variable `smallest` 2. **Initialize** it with a large number like 1500 3. **Compare** each input — if it’s smaller, update `smallest` 4. **Output** the `smallest` after the loop That’s it! Solid revision session — let’s keep it up 💪 --- Let me know if you want a video script version or notes-style version too! _____________________________________________________ IGCSE | O Level Computer Science 2023 - The Scenario-based Question - 15 Marks Specimen Paper 2B https://youtu.be/s7cuCXpIg7o Watch solved papers Full 2023 Specimen Paper 1A Solution | O Level (2210) IGCSE (0478) Computer Systems for 2023 https://youtu.be/ontjrLD1JZQ Full 2023 Specimen Paper 1B Solution | O Level (2210) IGCSE (0478) Computer Systems for 2023 https://youtu.be/b6dSIwZAJjY Full 2023 November 2023/12 Solution | O Level (2210) IGCSE (0478) Computer Systems Solved https://youtu.be/-69wsEu3FDU 🏆Don't forget to like, share, and subscribe for more tutorials. Happy learning! 🎉 ______________________________________________________________________________ Solved papers play list: IGCSE | O Level Solved Papers - Computer Systems | Algorithms, Programming and Logic https://www.youtube.com/playlist?list=PLjnERwnSrq_o5GdKzunA0jJygQiiP09KI Watch more videos of Computer Science Paper 1 Converting denary numbers to hexadecimal and hexadecimal numbers to denary - paper 1 https://youtu.be/NZyRA6G9Np0 Selection Logic - IF-ELSE-ENDIF - paper 2 https://youtu.be/U79s82s2EEo Data transmission & methods of error detection https://youtu.be/FYVnLk9ioho Software and its types, Utility programs, types of computer languages and language translators https://youtu.be/2a4WSIPQ_0s Conversion (denary, binary and hexadecimal) https://youtu.be/FnBUPEFkAUk Cyber security https://youtu.be/XCaNl2t3QqM Embedded systems https://youtu.be/ghakwOH5L8g Playlist Paper 1 https://www.youtube.com/playlist?list=PLjnERwnSrq_o31_7Q_FwgBthcpvG-xMTB Playlist Paper 2 https://www.youtube.com/playlist?list=PLjnERwnSrq_pslQi3Lk3Vc7em-gMZTApu _________________________________________ Follow me Facebook:https://web.facebook.com/LearnCSwithSY/ Facebook Community: https://web.facebook.com/groups/learncswithsy For more information contact email: [email protected] #sadafyousuf #learncswithsy #0478 _______________________________________________________ Happy learning! 💻🎓🌟 🙂Was this video lecture helpful?? share your thoughts and feedback in the comments 👍 #digitalmark3ting #asmaakhlaqa Managed by: Digitalmark3ting.com [email protected] +923215255851