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Cloud computing Classification

Cloud Computing  is buzzing word  now a days , for techyes. due to  Azure and icloud . but clould computing exist  since long time

. and  it can be classified  base on what type of service  it offers to user. here are there  classification of cloud computing.

  1. IaaS
  2. SaaS
  3. PaaS

  

  1. IaaS :  Infrastructure-as-a-Service
      means provider provides  web hosting and/or  virtual machines with fixed number of CPUs, fixed amount of RAM and hard disk space. And these virtual machine can run window , MAC server  or Linux like OS.
    All the system services that make up the foundation layer of a cloud  are IaaS. Hence  network service and data-backup are also consider as part of IaaS.
    Savvis, GoGrid.com, Rackspace, ATT Cloud Service  are nothing but it is IaaS.
    hence  IaaS means  provider gives  Virtualizations Infrastructure This service is mainly access by Newtwork architecture and/or network maintenance User 

  2. SaaS : Software-as-a-Service
    means Provider provides a hosted services which has many servers across the globe and  this services are means for certain business function or for  specific consumer market like Gmail, Hotmail, FaceBook, SalesForce.com. etcs.
    hence SaaS means
    Dedicated Software Application Services
    This  service is  meant for End user person.

  3. PaaS: Platform-as-a-Service
    means Provider 
    enables development of cloud-based application service on that platform through specific API/Services. The underneath platform might utilize virtualization infrastructure and uses proprietary software to distribute and manage the computing across wide range of computers and infrastructure  you can build, modify and deploy  cloud optimized application.  In short PaaS means  development  platform for cloud  application development.
    WindowAzure, icloud are example of PaaS.
    hence PaaS means Development platform for Cloud This service is meant  Cloud base software  developer.

compile by Divyang Panchasara Sr. Programmer Analyst Hitech OutSourcing

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