AWS BASICS

Cloud Concepts :

Cloud Services :

In general these are called as Hosted Services and broken into three categories :

1. IaaS - Infrastructure as a Service.
2. PaaS - Platform as a Service.
3. SaaS - Software as a Service.

Difference between these three services lies in level of abstraction and Virtualization provided.

There are many components which comes into picture when we are talking about.  They are

 Low Level Components         (Low Level Components)

             Servers ,  Load Balancers  , File Storage , Networking.

Components relies on Low level components (Mid Level Components)

             Runtime (Language used to code)
             OS   (Os that runs on Load balancers and servers.)

On top of all : (High Level Components)

Application Data
Data

In order to do rapid administration and rapid application development .

Cloud came into picture.


IaaS provides services for Low Level Components.

PaaS provides services for Low Level and Mid Level Components.

SaaS provides services for Low , Mid and High Level Components.