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Cloud computing
Cloud computing
Cloud computing
• With traditional desktop computing, we run copies of software programs on our own
computer. The documents we create are stored on our own pc.
• Although documents can be accessed from other computers on the network, they can’t be
accessed by computers outside the network. This is PC-centric.
• With cloud computing, the software programs one use aren’t run from one’s personal
computer, but are rather stored on servers accessed via the Internet.
• If a computer crashes, the software is still available for others to use.
• Same goes for the documents one create; they’re stored on a collection of servers accessed
via the Internet.
• Anyone with permission can not only access the documents, but can also edit and
collaborate on those documents in real time.
• Unlike traditional computing, this cloud computing model isn’t PC-centric, it’s document-
centric.
 Cloud computing is a type of computing that relies on sharing computing resources rather
than having local servers or personal devices to handle applications.
 Cloud computing is a type of Internet based computing where different services – such as
storage servers& applications are delivered to an organization’s computers & through the
internet like pay-as-you-go.
• Cloud Computing Is User Centric
• Cloud Computing Is Task-Centric
• Cloud Computing Is Powerful
• Cloud Computing Is Accessible
• Cloud Computing Is Intelligent
• Cloud Computing Is Programmable
 Individual users connect to the cloud from their own personal computers or portable
devices, over the Internet. To these individual users, the cloud is seen as a single
application, device, or document.
 The hardware in the cloud (and the operating system that manages the hardware
connections) is invisible.
There are mainly 3 service models given as:
 1. Infrastructure as a Service (IaaS)
 2. Platform as a Service (PaaS)
 3. Software as a Service (SaaS)
Cloud computing
Cloud computing
Infrastructure as a service (IaaS):
•Refers to the sharing of hardware resources for executing
services, typically using Virtualization technology. Infrastructure
as a Service is an equipment which is used to support hardware,
software, storage, servers and mainly used for delivering software
application environments
example of IaaS are Amazon, Microsoft, VMWare and Red Hat.
Characteristics of IaaS:
Policy based Services
Utility computing Services
Dynamic Scaling
Internet Connectivity
Platform as a service approach (PaaS):
•The offering also includes a software execution environment. As
for example, there could be a PaaS application server that enables
the lone developers to deploy web-based applications
•Example database,webservers, development tools
Characteristics of PaaS:
No need of downloading and installing operating
System
It saves Customers money
It mainly deals for delivering operating systems over
Internet
Software can be developed, tested and deployed
Software as a Service (SaaS) :
Software as a Service is nothing but a software
distribution model which are made available to
customers over a network such as server or Internet
The example of SaaS are Google Apps, Cisco‟s WebEx,
Salesforce CRM
Characteristics of SaaS:
Its easy to work under administration
It can be globally access
The software can be updated automatically
All license holder user will have same version of
software
Cloud computing
1. Public Cloud
2. Private Cloud
3. Hybrid Cloud
 A form of cloud storage where the enterprise and storage
service provider are separate and the data is stored outside of
the enterprise's data center. With public cloud storage, or
external storage clouds, enterprises and small businesses
offload their data storage and archival / backup needs to a
third-party cloud storage service provider, freeing them from
the expensive costs of having to purchase, manage and
maintain on-premises storage hardware and software
resources
1. Public Cloud
 The phrase used to describe a cloud computing platform that
is implemented within the corporate firewall, under the
control of the IT department.
 A private cloud is designed to offer the same features and
benefits of public cloud systems, but removes a number of
objections to the cloud computing model including control
over enterprise and customer data, worries about security,
and issues connected to regulatory compliance
2.Private Cloud
3.Hybrid Cloud
 A combination of public cloud storage and private cloud
storage where some critical data resides in the enterprise's
private cloud while other data is stored and accessible from
a public cloud storage provider.
 Hybrid cloud storage combines the advantages of
scalability, reliability, rapid deployment and potential cost
savings of public cloud storage with the security and full
control of private cloud storage.
Cloud computing
1. Lower computer costs.
2. Improved performance.
3. Reduced software costs.
4. Instant software updates.
5. Improved document format compatibility.
6. Unlimited storage capacity.
7. Increased data reliability.
8. Universal document access.
9. Latest version availability.
10. Device independence.
1. Requires a constant Internet connection.
2. Does not work well with low-speed connections.
3. Features might be limited.
4. Can be slow.
5. Stored data might not be secure.
• Thus cloud computing provide a super-computing power .
• This cloud of computers extends beyond a single company
or enterprise.
• The applications and data served by the cloud are available
to broad group of users, cross-enterprise and cross-
platform.
Cloud computing
Cloud computing

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Cloud computing

  • 4. • With traditional desktop computing, we run copies of software programs on our own computer. The documents we create are stored on our own pc. • Although documents can be accessed from other computers on the network, they can’t be accessed by computers outside the network. This is PC-centric. • With cloud computing, the software programs one use aren’t run from one’s personal computer, but are rather stored on servers accessed via the Internet.
  • 5. • If a computer crashes, the software is still available for others to use. • Same goes for the documents one create; they’re stored on a collection of servers accessed via the Internet. • Anyone with permission can not only access the documents, but can also edit and collaborate on those documents in real time. • Unlike traditional computing, this cloud computing model isn’t PC-centric, it’s document- centric.
  • 6.  Cloud computing is a type of computing that relies on sharing computing resources rather than having local servers or personal devices to handle applications.  Cloud computing is a type of Internet based computing where different services – such as storage servers& applications are delivered to an organization’s computers & through the internet like pay-as-you-go.
  • 7. • Cloud Computing Is User Centric • Cloud Computing Is Task-Centric • Cloud Computing Is Powerful • Cloud Computing Is Accessible • Cloud Computing Is Intelligent • Cloud Computing Is Programmable
  • 8.  Individual users connect to the cloud from their own personal computers or portable devices, over the Internet. To these individual users, the cloud is seen as a single application, device, or document.  The hardware in the cloud (and the operating system that manages the hardware connections) is invisible.
  • 9. There are mainly 3 service models given as:  1. Infrastructure as a Service (IaaS)  2. Platform as a Service (PaaS)  3. Software as a Service (SaaS)
  • 12. Infrastructure as a service (IaaS): •Refers to the sharing of hardware resources for executing services, typically using Virtualization technology. Infrastructure as a Service is an equipment which is used to support hardware, software, storage, servers and mainly used for delivering software application environments example of IaaS are Amazon, Microsoft, VMWare and Red Hat. Characteristics of IaaS: Policy based Services Utility computing Services Dynamic Scaling Internet Connectivity
  • 13. Platform as a service approach (PaaS): •The offering also includes a software execution environment. As for example, there could be a PaaS application server that enables the lone developers to deploy web-based applications •Example database,webservers, development tools Characteristics of PaaS: No need of downloading and installing operating System It saves Customers money It mainly deals for delivering operating systems over Internet Software can be developed, tested and deployed
  • 14. Software as a Service (SaaS) : Software as a Service is nothing but a software distribution model which are made available to customers over a network such as server or Internet The example of SaaS are Google Apps, Cisco‟s WebEx, Salesforce CRM Characteristics of SaaS: Its easy to work under administration It can be globally access The software can be updated automatically All license holder user will have same version of software
  • 16. 1. Public Cloud 2. Private Cloud 3. Hybrid Cloud
  • 17.  A form of cloud storage where the enterprise and storage service provider are separate and the data is stored outside of the enterprise's data center. With public cloud storage, or external storage clouds, enterprises and small businesses offload their data storage and archival / backup needs to a third-party cloud storage service provider, freeing them from the expensive costs of having to purchase, manage and maintain on-premises storage hardware and software resources 1. Public Cloud
  • 18.  The phrase used to describe a cloud computing platform that is implemented within the corporate firewall, under the control of the IT department.  A private cloud is designed to offer the same features and benefits of public cloud systems, but removes a number of objections to the cloud computing model including control over enterprise and customer data, worries about security, and issues connected to regulatory compliance 2.Private Cloud
  • 19. 3.Hybrid Cloud  A combination of public cloud storage and private cloud storage where some critical data resides in the enterprise's private cloud while other data is stored and accessible from a public cloud storage provider.  Hybrid cloud storage combines the advantages of scalability, reliability, rapid deployment and potential cost savings of public cloud storage with the security and full control of private cloud storage.
  • 21. 1. Lower computer costs. 2. Improved performance. 3. Reduced software costs. 4. Instant software updates. 5. Improved document format compatibility. 6. Unlimited storage capacity. 7. Increased data reliability. 8. Universal document access. 9. Latest version availability. 10. Device independence.
  • 22. 1. Requires a constant Internet connection. 2. Does not work well with low-speed connections. 3. Features might be limited. 4. Can be slow. 5. Stored data might not be secure.
  • 23. • Thus cloud computing provide a super-computing power . • This cloud of computers extends beyond a single company or enterprise. • The applications and data served by the cloud are available to broad group of users, cross-enterprise and cross- platform.