Storage devices | HDDs, SSDs, Flash Drives, Optical Disks, Cloud Storage
Автор: AllegraTeach
Загружено: 2026-02-16
Просмотров: 22
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Storage Devices: HDD, SSD, Flash, Optical & Cloud – CAT Gr 10–12
In this lesson we explore the five main types of storage devices you must know for CAT: hard disk drives (HDD), solid-state drives (SSD), flash drives, optical disks (CD/DVD/Blu‑ray) and cloud storage. We start with a simple “bookshelf and desk” analogy to show the difference between storage and RAM, then look at how each device works, their advantages and disadvantages, and where they are used in real life. You’ll see clear comparisons of speed, capacity, cost and portability, plus exam-style scenarios to help you choose the right device for a given situation. We end with common exam traps and practice questions to prepare you for Q4, 9 and 10 type questions.
Perfect for Grade 10–12 CAT learners and teachers who want clear, visual explanations and exam-focused revision.
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