Computer Science Mojo

~ David's Notes on coding, software and computer science


What are cloud computing service models SaaS, PaaS, IaaS

Category: Cloud     Tag: Cloud  
By: David     On: Mon 24 August 2015     

The meanings of SaaS, PaaS, IaaS cloud service models


Saas (Software as a Service)

Provides software that is reachable as long s there is internet.

  • e-mail
  • virtual desktop
  • Google Apps

PaaS (Platform as a Service)

Provides apps run time environment, development environment, and software platform.

  • webserver
  • database

IaaS (Infrastructure as a Service)

Provides cloud computing and storage.

  • virtual local area networks
  • virtual machines

IaaS is the basic layer, while SaaS is the top lyer.