CLOUD
COMPUTING
Cloud computing is the sharing of computing resources
rather than having local server or personal device to handle information and delivery
of hosted service over the internet
Cloud computing enables companies to consume compute
resources as a utility -- just like electricity -- rather than having to build
and maintain computing infrastructures in-house.
Cloud computing involves deploying groups of remote
servers and software networks that allow centralized data storage and online
access to computer services or resources.
Therefore cloud computing is storage and application
that are delivered to an organization's computers and devices through the
Internet
Clouds can be classified as public, private, dynamic
and hybrid
Public cloud
A public cloud is one based on the standard cloud computing where by a service provider makes resources, such as applications and storage, available to the general public over the Internet. Public cloud services may be free or offered on a pay-per-usage model
The main benefits of using a public
cloud service are:
- Easy and inexpensive set-up because hardware, application and bandwidth costs are covered by the provider.
- Scalability to meet needs.
- No wasted resources because you pay for what you use
Private cloud
Private
cloud is the one where the user didn’t make the resource but can share through
internet after holding the accessibility of those information.
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 albeit with greater potential risk for data loss due to natural
disaster.
Benefits
- Higher security and privacy
- More control
- Cost and energy efficiency
- Improved reliability
- Cloud bursting
Private
cloud services are delivered from a business' data center to internal users.
This model offers versatility and convenience, while preserving management,
control and security
Dynamic cloud
Dynamic cloud is the
ability for software and services to grow with your business. Sometimes that
means automatically adjusting itself to adjust to changes in demand or workloads
Dynamic cloud allows
business to be more agile in how it responds to changes in the market. It
allows a business to quickly develop through composing new applications using
prebuilt components
Cloud-based apps can be up and running in days or
weeks, and they cost less. With a cloud app, you just open a browser, log in,
customize the app, and start using it
Hybrid Cloud
Hybrid cloud is a combination of public cloud
services and on-premises private cloud – with orchestration and automation
between the two.
In hybrid cloud the user can be able to access the
information and share the resource through internet connection
Companies can run mission-critical workloads or
sensitive applications on the private cloud while using the public cloud for burst
workloads that must scale on-demand.
Benefits
Create a
unified, automated, scalable environment which takes advantage of all that a
public cloud infrastructure can provide, while still maintaining control over
mission-critical data.
Cloud computing promises several attractive benefits for businesses and end users. Three of the main benefits of cloud computing include
• Self-service provisioning: End users can spin up computing resources for almost any type of workload on-demand.
• Elasticity: Companies can scale up as computing needs increase and then scale down again as demands decrease.
• Pay per use: Computing resources are measured at a granular level, allowing users to pay only for the resources and workloads they use.
Goals of cloud computing
Cloud computing is to allow users to take beneļ¬t
from all of these technologies, without the need for deep knowledge about or
expertise with each one of them.
The cloud aims to cut costs, and helps the users
focus on their core business instead of being impeded by IT obstacles.
Super computing and high performance computing power
used by military and research facilities, to perform tens of trillions of
computations per second, in consumer-oriented applications such as financial
portfolios, to deliver personalized information, to provide data storage or to
power large, immersive computer games.
Data Center and for Small Business
Cloud computing enabling computing resources to be
accessed and shared as virtual resources in a secure and scalable manner.
For a small and medium size business the benefits of cloud computing is currently
driving adoption. In the SMB sector there is often a lack of time and financial
resources to purchase, deploy and maintain an infrastructure e.g. the software,
server and storage.
In cloud computing, small businesses can access these resources and expand or shrink services as business needs change.
The common pay-as-you-go subscription model is designed to let SMBs easily add or remove services and you typically will only pay for what you do use
How can you use the cloud?
The cloud makes it possible for you
to access you information from anywhere at any time.
While a traditional computer setup
requires you to be in the same location as your data storage
device the cloud takes away that
step.
The cloud removes the need for you
to be in the same physical location as the hardware that stores your data. Your
cloud provider can both own and house the hardware and software necessary to
run your home or business applications.
This is especially helpful for
businesses
that cannot afford the same amount
of hardware and storage space as a bigger company. Small companies can store
their information in the cloud, removing the cost of purchasing and storing
memory devices. Additionally, because you only
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