Cloud computing is a technology that uses internet servers to store and manage data and applications, allowing users to access files from any device with an internet connection. It provides efficient computing through centralized storage, memory, processing and bandwidth. Examples include email services like Gmail that require only an internet connection to use. Cloud computing may reduce costs and improve reliability, security, device independence and maintenance. However, it also poses security risks from lost control of data and lack of access to security logs.

1. CLOUD
COMPUTING

3. CONC
EPT

4. Cloud computing is a technology that uses
the internet and central remote servers to
maintain data and applications.

5. Cloud computing allows consumers and
businesses to use applications without
installation and access their personal files at
any computer with internet access.

6. This technology allows for much more
efficient computing by centralizing storage,
memory, processing and bandwidth.

7. A simple example of cloud computing is Yahoo
email, Gmail, or Hotmail etc. You don't need a
software or a server to use them. All a consumer
would need is just an internet connection and you
can start sending emails. The server and email
management software is all on the cloud (
internet) and is totally managed by the cloud
service provider Yahoo , Google etc. The
consumer gets to use the software alone and
enjoy the benefits.

8. SOFTWARE,
DATABASE

9. BENEFI
TS

10. Cost is claimed to be reduced and in a
public cloud delivery model capital
expenditure is converted to operational
expenditure, as infrastructure is typically
provided by a third-party and does not need
to be purchased for one-time or infrequent
intensive computing tasks.

11. Device and location independence enable
users to access systems using a web
browser regardless of their location or what
device they are using (e.g., PC, mobile
phone).

12. Virtualization technology allows servers
and storage devices to be shared and
utilization be increased. Applications can be
easily migrated from one physical server to
another.

13. Reliability is improved if multiple
redundant sites are used, which makes
well-designed cloud computing suitable for
business continuity and disaster recovery.

14. Maintenance of cloud computing
applications is easier, because they do not
need to be installed on each user's
computer and can be accessed from
different places.

15. SECURI
TY

16. Security could improve due to
centralization of data, increased security-
focused resources, etc., but concerns can
persist about loss of control over certain
sensitive data, and the lack of security for
stored kernels.
•KERNEL IS THE CENTRAL PART OF THE SYSTEM

17. Security is often as good as or better than
other traditional systems, in part because
providers are able to devote resources to
solving security issues that many customers
cannot afford.

18. However, the complexity of security is
greatly increased when data is distributed
over a wider area or greater number of
devices and in multi-tenant systems that are
being shared by unrelated users.

19. In addition, user access to security audit
logs may be difficult or impossible.

20. Cloud
Computing
Companies

21. Amazon Web Services
The cloud computing industry leader in the
opinion of most experts, Amazon has consistently
outranked the competition in both innovation and
customer service over the past two years.
Verizon (Terremark)
With the acquisition of Terremark, Verizon was
able to expand its cloud services portfolio into the
enterprise market and transform itself into,
potentially, the biggest provider in the industry.

22. IBM
Thanks to a focused commitment to expanding its
cloud services menu, long-time IT behemoth IBM
has been busy eating up a massive chunk of the
enterprise market this year.
Salesforce.com
Already highly successful in the Software as a
Service market, Salesforce.com guaranteed itself
a continued place at the big boys’ table for the
foreseeable future when it acquired Platform as a
Service giant Heroku.

23. CSC
Specializing in IT integrations, CSC recently
launched BizCloud – a unique private cloud
service that integrates Infrastructure as a Service
into your legacy IT system and interlinks it with
Software as a Service providers.
Rackspace
Ranking second only to the mighty Amazon in
cloud-based revenue, Rackspace is poised to
remain with the pack leaders thanks to its recent

24. Google
The undisputed king of search engines spent the
first half of 2011 adding attractive features to its
Google App Engine service in a bid to win a
greater share of the enterprise market.
BlueLock
When it pioneered a breakthrough improvement
in vCloud resources for VMware, BlueLock
immediately established itself as one of the
leading VCE providers in the world.

25. Microsoft
Enjoying tremendous success with its Azure
cloud service, Microsoft owns a significant share
of the cloud services market among mobile
companies, web companies and social
networking firms.
Joyent
Teaming up with Dell to create pre-configured,
ready-out-of-the-box cloud infrastructure
packages, Joyent has positioned itself as a leader

26. CLICK HERE TO WATCH A
VIDEO

27. SOURCE:
•www.wikinvest.com
•www.cloudcomputing-companies.org
•en.wikipedia.org
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29. Roshankumar S Pimpalkar