cloud computing
TRANSCRIPT
A type of Internet-based computing," where different services — such as servers, storage and applications —are delivered to an organization's computers and devices through the Internet
It relies on sharing computing resources rather than having local servers or personal devices to handle applications
Reduction in computing costs
Virtualization
On-demand self service
Rapid elasticity
Consumption-based billing
Software as a Service (Saas)
Platform as a Service (Paas)
Infrastructure as a Service (Iaas)
Users do not manage the infrastructure and platform where the application runs
This eliminates the need to install and run the application on the user's own computers
Users are provided access to application software and databases
SaaS is usually priced on a pay-per-use basis
Allows users to create their own cloud applications using specific tools and languages
Facilitates rapid development at low cost
Can be used or public or private deployment
Allows users to run any application on the cloud hardware of their choice
Physical infrastructure is abstracted to provide computing , storage and networking as a service
Thus eliminating the need for dedicated systems
Private cloud
Public cloud
Hybrid cloud
Community cloud
Cloud infrastructure operated solely for a single organization
Capital intensive
Dedicated resources
Customized and tailored policies
Objective is to maintain a consistent level of control over security, privacy and governance
Services are rendered over a network that is open for public use
Cloud infrastructure is homogenous
Shared utilization of resources
No wasted resources because it is used as “pay-as-you-go” basis
Scalability to meet needs
Composition of two or more clouds that offers the benefit of multiple deployment models
So, it extends the capacity of the cloud service
Shares infrastructure between several organizations from a specific community with common concerns
Less cost-efficient
Refers to the components and subcomponents required for cloud computing
Components typically consist of a front end platform, back end platforms, a cloud based delivery, and a network
Combined, these components make up cloud computing architecture
Cost efficient
Almost unlimited storage
Backup and recovery
Automatic software integration
Easy access to information
Security breaches
Vendor lock-in
Performance interference and noisy neighbours
Consumer end storage
Monopolies and privatization of cyberspace
It is touted as the next big thing in the history of computing
It has reached a maturity that leads it into a productive phase
Together with it’s pros and cons, it will only grow exponentially from now on
www.wikipedia.com
Cloud computing videos in www.youtube.com
www.cloudcomputinginsights.com
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