Core Cloud Services (IaaS, PaaS, SaaS)

The cloud is the backbone of modern applications. Understanding IaaS, PaaS, and SaaS helps you choose the right infrastructure model for your project.

IaaS — Infrastructure as a Service

Provides raw computing resources such as virtual machines, storage, and networks.
Examples: AWS EC2, Azure VMs, Google Compute Engine.

PaaS — Platform as a Service

Developers get ready-made environments to deploy apps without managing servers.
Examples: Heroku, AWS Elastic Beanstalk, Firebase.

SaaS — Software as a Service

Applications delivered directly over the internet.
Examples: Office 365, Google Workspace, Salesforce.

Why These Models Matter

• Faster development cycles
• Lower infrastructure costs
• Built-in scalability & reliability
• Ideal for both startups and enterprises

Understanding these models helps you design efficient, scalable cloud architectures.