Post on 15-Apr-2017
BySreehari S
PGT(Computer Science)KV Khammam
contents
DefenitionWays in which cloud computing is acheivedSaaSPaaSIaaSTypes of infrastructure Allocationcharacteristics
Objectives
To make you understanda)What is cloud computing?b)What is SaaS,PaaS & IAAS?c)What is private, public and Hybrid cloud?d)What are the characteristics of Cloud
computing?
What is Cloud Computing?
Accessing of applications computing power and Storage over internet.
How cloud computing is acheived?
By Providing three layers as service Applications Platform Infrastructure
Software as a ServiceOff the Shelf applications are accessed over
internet.We can use the applications without installing it
on the local machine.
Examples http://sheet.zoho.com -word/spreadsheet
processor http://pixlr.com-online Image editor
Platform as a Service Provides environment and tools for creating
online applications. Our own created applications can be
uploaded on the cloud. We are not concerned about the underlying
architecture the application is running.Example:google's App Engine
Infrastructure as a Service Allows existing applications to be run on cloud
supplier's hardware.We can host our own applications with our own
system architecture and requirements.Hardware is provided by Infrastructure Service
providerExampleAmazon web servicesRackspace
The Ways in which infrastructure is allocated
Private cloud Public Cloud Hybrid Cloud
Private Cloud The cloud infrastructure is operated solely
for an organization. It may be managed by the organization or a third party and may exist on premise or off premise.
Public cloud
The cloud infrastructure is made available to the general public or a large industry group and is owned by an organization selling cloud services.
Hybrid cloud The cloud infrastructure is a composition of
two or more types of clouds ExampleComputing capability in private cloud and
storage in public cloud.
Characteristics of Cloud Computing
With cloud computing, organizations can have on-demand self-service for computing capabilities, such as server time and network storage when needed, and through a single provider.
computing resources are pooled to serve multiple consumer
Services are available through broad network access.
Cloud capabilities can be provided to the subscriber rapidly and elastically, allowing the subscriber to either increase or decrease services.
DISCUSSION
“I am storing some data on Google Drive”Is it SaaS,IaaS or PaaS?
Thank you