15-03-2012, 11:09 AM
CLOUD COMPUTING
INTRODUCTION
An emerging computer paradigm where data and services reside in massively scalable data centers in the cloud and can be accessed from any connected devices over the internet.
It is a computing industry where the computing is moved to a cloud of computers.
CHARACTERISTICS
Self Healing
Multi-tenancy
Linearly Scalable
Service Oriented
Flexible
What Technologies is Cloud Computing Replacing
Cloud computing is replacing large Corporate Data Centers and unnecessary, expensive private server infrastructure.
Web 2.0, SaaS, Enterprise and government users are adopting cloud computing because it eliminates capital investment in hardware and facilities as well as reduces operations labor
Companies Leading in Cloud Computing
“Google ”
Network made up of millions of cheap servers, that would store staggering amounts of data, including numerous copies of the world wide web
Makes search faster, helping ferret out answers to billions of queries in a fraction of a second
Google has invested more than $2 billion a year in data centers for cloud computing.
By far the leader in the technology.
Amazon Elastic Compute Cloud “Amazon EC2”
Simple Storage Service “S3”
Simple Queue Service “SQS”
Simple Database Service “SDB”
It is a powerful new abstraction for large scale data processing system which is scalable, reliable and available.
It eliminates management headache.
It is a new emerging architecture needed to expand the internet to become the computing platform of the future.
