Cloud computing refers to storing and accessing data and programs over the Internet instead of a local computer's hard drive. It uses the "cloud" as a metaphor for the Internet. There are several layers of cloud computing services including infrastructure hosting, storage, platforms for application development, and full business applications. Common examples are file storage services like Dropbox, email services like Gmail, and development platforms from Amazon, Microsoft, and Google.

1. Presented By:
Name: Kohinoor Alam
Roll N0: 1101171101

2. Q.What is cloud computing ??
The term cloud computing is
MISNORMER.
In cloud computing the word “cloud” is
used for the Internet so that cloud
computing means ‘a type of internet
based computing’.

4. Services
Application
Development
Platform
Storage
Hosting
Cloud Computing Service Layers
Description
Services – Complete business services such as
PayPal, OpenID, OAuth, Google Maps, Alexa
Services
Application
Focused
Infrastructure
Focused
Application – Cloud based software that eliminates
the need for local installation such as Google Apps,
Microsoft Online
Storage – Data storage or cloud based NAS such
as CTERA, iDisk, CloudNAS
Development – Software development platforms used
to build custom cloud based applications (PAAS &
SAAS) such as SalesForce
Platform – Cloud based platforms, typically provided
using virtualization, such as Amazon ECC, Sun Grid
Hosting – Physical data centers such as those run
by IBM, HP, NaviSite, etc.
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