What is Cloud Serivce ?
A cloud service is any resource that is provided over the Internet.
What are the Types of Cloud Services ?
The most common cloud service resources are
1.Software as a Service (SaaS),
2.Platform as a Service (PaaS)
3.Infrastructure as a Service (IaaS)
What is Software as a Service (SaaS)?
In the SaaS model, cloud providers install and operate application software in the cloud and cloud users access the software from cloud clients. Cloud users do not manage the cloud infrastructure and platform where the application runs.
The pricing model for SaaS applications is typically a monthly or yearly flat fee per user
What is Platform as a Service (PaaS) ?
In the PaaS models, cloud providers deliver a computing platform, typically including operating system, programming-language execution environment, database, and web server. Application developers can develop and run their software solutions on a cloud platform without the cost and complexity of buying and managing the underlying hardware and software layers.
What is Infrastructure as a service (IaaS) ?
Providers of IaaS offer computers – physical or (more often) virtual machines – and other resources. IaaS refers to online services that abstract user from the detail of infrastructure like physical computing resources, location, data partitioning, scaling, security, backup etc.
IaaS clouds often offer additional resources such as a virtual-machine disk-image library, raw block storage, file or object storage, firewalls, load balancers, IP addresses, virtual local area networks (VLANs), and software bundles. IaaS-cloud providers supply these resources on-demand from their large pools of equipment installed in data centers
Cloud providers typically bill IaaS services on a utility computing basis: cost reflects the amount of resources allocated and consumed
who are the Cloud Service Providers in India ?
2.Reliance Data Center
5.TCS(Tata Consultancy Services)