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Kazem Taghandiky
Email: Taghandiky@gmail.com
mobile:0989335816244
University of Isfahan/Country Iran
Year:92-93 Slides:30
Cloud Computing
Kazem Taghandiky

2. A Brief History of Cloud Computing
 “cloud computing” concepts date back to the 1950s
when large-scale mainframes were made available
to schools and corporations
 A couple decades later in the 1970s,
IBM released an operating system called VM
that allowed admins on their System/370 mainframe
systems to have multiple virtual systems
 In the 1990s, telecommunications companies that had
historically only offered single dedicated point–to-point data
connections started offering virtualized private
network connections
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3. Virtual machine monitor (VMM) :
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4. What is the cloud?
type of computing that relies on sharing computing resources rather than having local servers or
personal devices to handle applications
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5. How can you use the cloud :
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6. Characteristics :
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7. Types of Services :
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8. SAAS :
able to access software applications over the internet.
Often referred to as software-on-demand and utilizing it
is akin to renting software rather than buying it.
There are no setup costs with SaaS, as there often are
with other applications
SaaS is scalable with upgrades available on demand
Access to Software as
a Service is compatible across all internet enabled
devices As long as
there is an internet connection, applications are
accessible from any location
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9. Example :
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10. SAAS Vendors :
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11. PAAS :
is a category of cloud computing that provides a
platform and environment to allow developers to build
applications and services over the internet. PaaS
services are hosted in the cloud and accessed by users
simply via their web browser.
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12. PAAS Vendors :
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13. IAAS :
the pool of hardware resource is pulled
from a multitude of servers and networks
usually distributed across numerous data
centers, all of which the cloud provider is
responsible for maintaining
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14. IAAS Vendors :
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15. front end and back end :
 The cloud computing model is comprised of a front end and a back end.
Front
end
User device
cloud of services
Internet
applications, c
omputers, ser
vers, and data
storage
Back End
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16. Type of cloud :
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17. Public Clouds :
The most recognizable model of cloud
computing to many consumers is the public
cloud model, under which cloud services
are provided in a virtualized
environment, constructed using pooled
shared physical resources, and accessible
over a public network such as the internet.
To some extent they can be defined in
contrast to private clouds which ring-fence
the pool of underlying computing
resources, creating a distinct cloud platform
to which : Amazon
Example only a single organization has
access. Public clouds, however, provide
>>>See More multiple clients using the same
services to
Cloudshared infrastructure
Computing
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18. Private Cloud :
A private cloud is a particular model of
cloud computing that involves a distinct
and secure cloud based environment in
which only the specified client can operate.
As with other cloud models, private clouds
will provide computing power as a service
within a virtualized environment using an
underlying pool of physical computing
resource. However, under the private cloud
model, the cloud (the pool of resource) is
only accessible by a single organization
Example: HP Data Centers
providing that organization with greater
control and privacy
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19. Hybrid Clouds :
A hybrid cloud is an integrated cloud
service utilizing both private and public
clouds to perform distinct functions within
the same organization. All cloud computing
services should offer certain efficiencies to
differing degrees but public cloud services
are likely to be more cost efficient and
scalable than private clouds. Therefore, an
organization can maximize their efficiencies
by employing public cloud services for all
non-sensitive operations, only relying on a
private cloud where they require it and
ensuring that all of their platforms are
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seamlessly integrated.
Cloud Computing
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20. Community Cloud :
A community cloud is a cloud service model
that provides a cloud computing solution to
a limited number of individuals or
organizations that is governed, managed
and secured commonly by all the
participating organizations or a third party
managed service provider.
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21. Distributed cloud :
Cloud computing can also be provided by a
distributed
set of machines that are running at
different locations, while still connected to
a single network or hub service. Examples
of this include distributed computing
platforms such as BOINC and
Folding@Home.
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Cloud Computing
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22. Security Cloud :
What's one of the biggest hindrances
slowing the migration to cloud computing?
Concerns over security, that's what.
Companies want to know where their data
is, who has access to it and that it's
protected. These companies target three
key areas for cloud security: security in the
cloud, security for the cloud and security
from the cloud.
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23. Storage Cloud :
The cloud seems made for online storage.
At its core, the cloud offers a nearly infinite
space to store data, whether it's for
backup, business continuity, disaster
recovery or any of the other myriad
purposes. And for solution
providers, offering Storage-as-a-Service, or
offering the ability to back up or store data
via the Internet, is creating new business
opportunities. The ability to dynamically
expand or scale back storage capacity on
demand is a powerful proposition, and
solution providers and enterprises want to
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ensure they're trusting their data to the
Cloudright cloud storage vendor.
Computing
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24. IAAS Storage :
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25. Pros and Cons :
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26. Comparison :
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27. Comparison :
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28. Comparison grid & cloud :
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29. Cloud computing in the Iran and world :
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30. Cloud computing in the Iran and world :
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31. Conclusions :
To summarize, the cloud provides many options for the everyday
computer user as well as large
and small businesses. It opens up the world of computing to a broader
range of uses and increases
the ease of use by giving access through any internet connection.
However, with this increased ease also come drawbacks. You have less
control over who has access to your information and little to no
knowledge of where it is stored. You also must be aware of the security
risks of having data stored on the cloud. The cloud is a big target for
malicious individuals and may have disadvantages because it can be
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accessed through an unsecured internet connection
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32. Thank You
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