LEADING FACET OF NETWORKING-CLOUD COMPUTING

Infrastructure provided by the service provider to build internet application.The service provided by cloud are categorize > Software As a Service > Infrastructure As a Service > Platform As a Service > Database As a Service > Software plus Service

WHAT IS CLOUD ??

Cloud computing refers to the use and access of multiple server-based

computational resources via a digital network (WAN), Internet connection

using the World Wide Web  etc.. Cloud users may access the server resources

using a computer, netbook, pad computer, smart phone, or other device.

In cloud computing, applications are provided and managed by the cloud

server and data is also stored remotely in the cloud configuration. Users do

not download and install applications on their own device or computer; all

processing and storage is maintained by the cloud server. The on-line services

may be offered from a cloud provider or by a private organization.

Cloud Computing- CONCEPT

Cloud computing is a natural evolution of the widespread adoption of virtualization, service-oriented architecture, autonomic, and utility computing. Details are abstracted from end-users, who no longer have need for expertise in, or control over, the technology infrastructure "in the cloud" that supports them.

The actual term "cloud" borrows from telephony in that telecommunications companies, who until the 1990s offered primarily dedicated point-to-point data circuits, began offering Virtual Private Network (VPN) services with comparable quality of service but at a much lower cost.

HISTORY

NEEDS

To reduce the IT operations and management costs

Cloud model of software architecture.

ISSUES RELATED TO CLOUD COMPUTING

Cloud computing may create a dependence on the provider (Google, Amazon) and may make it difficult to move to another platform.

Google itself admits that Google App Engine is targeted at consumer applications, not businesses.

There’s always the risk that the Cloud provider may change business models or even go out of business.

CHARACTERISTICS

Measured Service

 Rapid Elasticity

On-Demand Self-Service

Ubiquitous Network Access

Resource Pooling

ARCHITECTURE

TYPES OF CLOUD

Public CloudPrivate CloudCommunity CloudHybrid CloudCombined Cloud

PROS AND CONS : ADVANTAGES: Software as a SubscriptionReduced Software MaintenanceIncreased ReliabilityEnvironmentally FriendlyCost ReductionPortability/Accessibility

DISADVANTAGES:

Bandwidth could bust your budget

App performance could suffer

Data might not be cloud-worthy

Too big to scale

Future of CLOUD COMPUTING The 55% of respondents believe that cloud computing

has a lower total cost of ownership (TCO).

74 percent of respondents indicated that cloud computing would either lead to an increase in hiring or have no impact, while rest of respondents expected any decrease in hiring based on cloud adoption.

39 percent indicating that the cloud would make for less or more complex environments.

Conclusions• Cloud Computing is the fastest growing part of IT

• Tremendous benefits to customers of all sizes

• Cloud services are simpler to acquire and scale up or down

Conclusions• Public clouds work great for some but not all applications

• Private clouds offer many benefits for internal applications

• Public and private clouds can be used in combination

By-Nafisa Mughal