Know and understand advantages and disadvantages of using cloud storage compared to other methods
4 Networks and the effects of using them
Cloud Storage vs. Other Storage Methods
📦 Cloud storage lets you keep files on remote servers that you can access from any device with an internet connection. 💻 Local storage (like a hard drive or SSD) keeps files on a device that you physically own. 🔌 External drives and USB sticks are portable but still need to be carried around. The choice affects speed, cost, security, and how you share files with classmates or teachers.
Analogy: The Library vs. Your Backpack
Think of cloud storage as a huge public library: you can borrow books from anywhere, but you need a library card (account) and a network connection. Your backpack (local storage) holds books you carry with you; you can read them anytime, but you can only take a few at once.
Advantages of Cloud Storage
- 📶 Accessibility: Access files from any device with internet.
- 🔄 Automatic backup: Files are saved on multiple servers, reducing loss risk.
- 🤝 Collaboration: Share links with classmates for real‑time editing.
- 💰 Cost‑effective for small amounts: pay only for what you use.
- ⚡ Scalability: Increase storage space without buying new hardware.
Disadvantages of Cloud Storage
- 🌐 Internet dependency: No access without a connection.
- 🔒 Security concerns: Data stored on third‑party servers may be vulnerable.
- 📈 Long‑term cost: Monthly fees can add up over years.
- ⚙️ Speed limits: Upload/download speeds depend on your internet plan.
- 📦 Data caps: Some free plans limit storage or bandwidth.
Comparison Table
| Storage Type | Cost (per TB/month) | Access | Security | Scalability |
|---|---|---|---|---|
| Cloud (e.g., Google Drive) | ≈ $0.02 | Anywhere with internet | Strong encryption, but third‑party | Unlimited (pay as you go) |
| Local SSD | ≈ $0.10 (one‑off) | Device only | Physical security only | Fixed capacity |
| External HDD | ≈ $0.08 (one‑off) | Portable but needs device | Physical damage risk | Fixed capacity |
| USB Stick | ≈ $0.05 (one‑off) | Very portable | Easy to lose | Limited size |
Exam Tip Box
• When answering “Compare cloud storage with other methods,” use the comparison table as evidence. • Highlight key points: accessibility, cost model, security, and scalability. • Remember to mention the dependency on internet and potential data privacy concerns for cloud services. • Use the analogy of a library vs. backpack to illustrate the trade‑offs in a clear, memorable way.
Revision
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