1.Don’t be confused by the expression “cloud services, you are probably
already using them if you use Amazon, Gmail, Hotmail, or Facebook. All
it means is that your data is stored virtually.
2.Cloud
computing is the delivery of hosted services over the Internet .The
origin of the term cloud computing is not known but it may be based on
practice of using drawings of clouds to denote networks in diagrams of
computing and communications systems.
3.Cloud computing
provides easy, scalable access to computing resources and IT services.
It can be thought of as similar Cloud Computingto a utility like an
electricity grid, delivered over a network .It involves the sharing of
resources, services and infrastructure and can often be very cost
effective.
4.Amazon played a key role in the development of
cloud computing by modernizing their data centers, which were using a
fraction of their capacity . The new cloud architecture gave significant
efficiency improvements and small, fast-moving teams could add new
features faster and more easily. Amazon then developed a product that
could provide cloud computing to external customers, and launched Amazon
Web Service on a utility computing basis in 2006.
There are three characteristics of cloud services that differentiate them from traditional hosting.
They are sold on demand, typically by the minute or the hour;
They are elastic — a user can have as much or as little of a service as they want at any given time;
services are fully managed by the provider , so the consumer only needs a personal computer and Internet access
To be successful, Companies today need to compete in the global economy
and keep up with the pace of innovation. Their IT departments must be
agile when responding to changing business needs, and must optimise
efficiency and manage costs while enabling their business to stay
productive. Cloud computing is one of the key technology trends creating
opportunities to address these needs.
Private or Public Cloud.
A public cloud sells services to anyone on the Internet. An example
is Amazon Web Services which is thought to be currently the largest
public cloud provider.
A private cloud is a privately owned network or a data centre that supplies hosted services to a limited number of clients.
When a service provider uses public cloud resources to create their private cloud, this is known as a virtual private cloud.
A hybrid cloud or hybrid IT is a composition of at least one private
cloud and at least one public cloud. Some resources are managed in-house
and others are provided externally. For example, an organization might
use a public cloud service, such as Amazon Simple Storage Service
(Amazon S3) for archived data but continue to maintain in-house storage
for customer data that is still active. This hybrid approach takes
advantage of the scalability and cost-effectiveness that a public cloud
environment offers without exposing critical applications and data to
third-party vulnerabilities.
Cloud services are broadly divided into three categories:
Infrastructure-as-a-Service (IaaS),
Platform-as-a-Service (PaaS)
Software-as-a-Service (SaaS).
Infrastructure-as-a-Service allows users to start, stop, and access and
configure their virtual servers and storage. An example is Amazon Web
Services. A user will pay for only the capacity that is needed, and can
bring more online when required. Because this pay-for-what-you-use model
resembles the way electricity, fuel and water are consumed, it’s
sometimes referred to as utility computing.
Platform-as-a-service is a set of software and product development tools
hosted on the provider’s infrastructure. An example is GoogleApps.
Developers create applications on the provider’s platform.
2.Cloud computing is the delivery of hosted services over the Internet .The origin of the term cloud computing is not known but it may be based on practice of using drawings of clouds to denote networks in diagrams of computing and communications systems.
3.Cloud computing provides easy, scalable access to computing resources and IT services. It can be thought of as similar Cloud Computingto a utility like an electricity grid, delivered over a network .It involves the sharing of resources, services and infrastructure and can often be very cost effective.
4.Amazon played a key role in the development of cloud computing by modernizing their data centers, which were using a fraction of their capacity . The new cloud architecture gave significant efficiency improvements and small, fast-moving teams could add new features faster and more easily. Amazon then developed a product that could provide cloud computing to external customers, and launched Amazon Web Service on a utility computing basis in 2006.
There are three characteristics of cloud services that differentiate them from traditional hosting.
They are sold on demand, typically by the minute or the hour;
They are elastic — a user can have as much or as little of a service as they want at any given time;
services are fully managed by the provider , so the consumer only needs a personal computer and Internet access
To be successful, Companies today need to compete in the global economy and keep up with the pace of innovation. Their IT departments must be agile when responding to changing business needs, and must optimise efficiency and manage costs while enabling their business to stay productive. Cloud computing is one of the key technology trends creating opportunities to address these needs.
Private or Public Cloud.
A public cloud sells services to anyone on the Internet. An example is Amazon Web Services which is thought to be currently the largest public cloud provider.
A private cloud is a privately owned network or a data centre that supplies hosted services to a limited number of clients.
When a service provider uses public cloud resources to create their private cloud, this is known as a virtual private cloud.
A hybrid cloud or hybrid IT is a composition of at least one private cloud and at least one public cloud. Some resources are managed in-house and others are provided externally. For example, an organization might use a public cloud service, such as Amazon Simple Storage Service (Amazon S3) for archived data but continue to maintain in-house storage for customer data that is still active. This hybrid approach takes advantage of the scalability and cost-effectiveness that a public cloud environment offers without exposing critical applications and data to third-party vulnerabilities.
Cloud services are broadly divided into three categories:
Infrastructure-as-a-Service (IaaS),
Platform-as-a-Service (PaaS)
Software-as-a-Service (SaaS).
Infrastructure-as-a-Service allows users to start, stop, and access and configure their virtual servers and storage. An example is Amazon Web Services. A user will pay for only the capacity that is needed, and can bring more online when required. Because this pay-for-what-you-use model resembles the way electricity, fuel and water are consumed, it’s sometimes referred to as utility computing.
Platform-as-a-service is a set of software and product development tools hosted on the provider’s infrastructure. An example is GoogleApps. Developers create applications on the provider’s platform.
