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

0:00 Exam tips 1:26 1 MCQ 2:02 2 MCQ 3:41 3 PDLC 6:20 4 Validation 12:28 5 Test data 15:10 6 Error detection 25:23 7 Flowchart 36:18 8 Database 42:09 9 Logic gates 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 move 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    • IGCSE / O Level Computer Science 2023 - Th...   Watch solved papers Full 2023 Specimen Paper 1A Solution | O Level (2210) IGCSE (0478) Computer Systems for 2023    • Full 2023 Specimen Paper 1A Solution | O L...   Full 2023 Specimen Paper 1B Solution | O Level (2210) IGCSE (0478) Computer Systems for 2023    • Full 2023 Specimen Paper 1B Solution | O L...   Full 2023 November 2023/12 Solution | O Level (2210) IGCSE (0478) Computer Systems Solved    • Full  IGCSE (0478) /O Level Computer Scien...   🏆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    • IGCSE | O Level Solved Papers - Computer S...   Watch more videos of Computer Science Paper 1 Converting denary numbers to hexadecimal and hexadecimal numbers to denary - paper 1    • 1.1 Converting denary numbers to hexadecim...   Data transmission & methods of error detection    • Chapter 2: Data Transmission & Error Detec...   Software and its types, Utility programs, types of computer languages and language translators    • 4.1 Software & its types, Utility programs...   Conversion (denary, binary and hexadecimal)    • Chapter 1: Data Representation | Complete ...   Cyber security    • Quick recap Chapter 5.3 Cyber security | C...   Embedded systems    • 3.1.5 Embedded Systems #computerscience #c...   Playlist Paper 1    • Computer Science Paper 1   Playlist Paper 2    • Computer Science Paper 2   _________________________________________ Follow me Facebook:  / learncswithsy   Facebook Community:   / learncswithsy   TikTok: www.tiktok.com/@sadaf.yousuf6 For more information contact email: LearnCSwithSY@gmail.com #sadafyousuf #learncswithsy #0478 #igcse #paper2 #olevelcomputerscience #february2025 #computerscience #exampreparation #pseudocode #validation _______________________________________________________ Happy learning! 💻🎓🌟 🙂Was this video lecture helpful?? share your thoughts and feedback in the comments 👍 Managed by: Digitalmark3ting.com info@digitalmark3ting.com +923215255851