Describe Cloud Computing Models
Describe Cloud Computing Models
In this lesson, you’ll explore the three main cloud computing models: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS).
📦 The Three Cloud Models
- IaaS (Infrastructure as a Service): Provides virtualized computing resources such as virtual machines, storage, and networking. You manage the OS, apps, and data. Example: Azure Virtual Machines.
- PaaS (Platform as a Service): Offers a platform for building, testing, and deploying applications without managing the underlying infrastructure. Example: Azure App Service.
- SaaS (Software as a Service): Delivers fully functional applications over the internet. Users just use the software; the provider manages everything. Example: Microsoft 365, Outlook.com.
📊 Comparison Table
| Model | You Manage | Provider Manages |
|---|---|---|
| IaaS | OS, Middleware, Apps, Data | Hardware, Networking |
| PaaS | Apps, Data | OS, Runtime, Middleware, Infrastructure |
| SaaS | None | Everything |
🎯 Use Cases
- IaaS: Best for companies needing full control over their environment (e.g., hosting legacy applications).
- PaaS: Ideal for developers building web or mobile apps without worrying about infrastructure.
- SaaS: Great for end-users accessing software via browser (e.g., email, CRM).
💡 Summary
- There are three cloud service models: IaaS, PaaS, and SaaS.
- IaaS offers control and flexibility, PaaS simplifies development, and SaaS provides ready-to-use apps.
- Choosing the right model depends on your needs and level of management desired.
تعليقات
إرسال تعليق