Secondary storage Explained! O Level & IGCSE | P1 | Lecture 17

Описание: In this lecture, I explain Secondary Storage for O Level and IGCSE Computer Science in a clear, exam-focused way.

Secondary storage is used to store data and programs permanently, even when the computer is turned off. In exams, students are often tested on different types of secondary storage, their advantages, and when they are used.

This lecture is ideal for students preparing for:
📘 O Level Computer Science (Cambridge 2210) – Paper 1 & 2
📗 IGCSE Computer Science (0478 / 0984) – Paper 1 & 2

🔍 What you’ll learn in this lecture:
✔ What secondary storage is and why it is used
✔ The difference between primary storage and secondary storage
✔ Types of secondary storage: Magnetic, Optical, and Solid-State storage
✔ Examples such as Hard Disk Drive (HDD), Solid State Drive (SSD), USB flash drives, CDs, DVDs, and Blu-ray discs
✔ Advantages and disadvantages of different storage devices
✔ Real exam-style explanations and examples

This lecture will help you clearly understand how data is stored permanently in computer systems, making Paper 1 & Paper 2 questions easier to solve.

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