What is cloud computing,Definition of Cloud Computing

Introduction

—Cloud computing is a technology that uses the internet and central remote servers to maintain data

and applications.

—All a consumer would need is just an internet connection and can start sending emails.

Cloud Services

•Software As a Service (SaaS)

•Platform As a Service (PaaS)

•Infrastructure As a Service (IaaS)

Software as a Service

—SaaS is the most widely known and widely used form of cloud computing.

—Highest-profile examples are Google's Gmail and Apps,  Yahoo , Google and Skype.

— Platform as a Service:- —It delivers virtualized servers on which customers can 

run existing applications or develop new ones without having to worry about maintaining the

operating systems, server hardware.

— —Infrastructure as a Service

—IaaS is designed to replace the functions of an entire data center.—

—This saves cost (time and expense) of capital equipment deployment .