Cloud Computing is a new type of technology that is widely used today. Many companies are developing technologies that are changing the way they look at business, a type of Internet-based computing where various services are delivered to an organization’s computer over the Internet. In addition, there are a number of definitions of cloud computing, such as computers for rent on the Internet, virtualized servers, sky storage, etc. Instead of using local servers or personal devices to run applications, it involves sharing computing resources.
there is no need to build individual servers or build space for data centers, nor to license software, etc. Businesses also have to pay for a cloud service based on similar electricity consumption. In the case, there are no capital expenditures. Cloud computing is thus essentially a computing power on demand that is uniformly available as electricity.
There are three layers:
* Software as a Service (SaaS): SaaS refers to software that is deployed over the Internet. For example, Dropbox, Gmail are SaaS. Services offered are paid. For example, Google applications for businesses can only be used by paying for a service. SaaS are applications used by users. The most popular enterprise SaaS tool is Salesforce.com, which is an enterprise CRM application.
* Platform as a Service (PaaS): PaaS is one level below the SaaS that serves as a computing platform or solution stack as a service. Businesses need to deploy a solution stack of application software. The solution stack would consist of a managed database and the operating system would be loaded into it. It also contains a runtime environment for various programming languages.
* Infrastructure as a Service (IaaS): Refers to a virtualized IT infrastructure as a service. They include virtualization, servers, network and storage. The most popular IaaS are Amazon Web Service and Rackspace.
The following are the reasons for SMEs and startups
* No capital expenditures and pay-per-run: Cloud computing does not incur any capital expenditures and is available as a pay-per-use service. Small and medium-sized businesses and startups must sign up for the cloud service, use computing power, and pay the bill. Therefore, no investment is required in terms of data center resources, servers, licensing, etc.
* Elastic capacity: Elastic capacity refers to adding or removing servers that host applications when needed. Elastic capacity helps handle any load and also helps increase computing power to support the load.
* Self-service: Cloud computing is very API-oriented and self-service-oriented. No guidelines or infrastructure are required to understand cloud computing.
* Automation: Launcher can automate many processes to maintain the application. For example, in any technology enterprise, each application is deployed first in a development environment, then in a test environment, and then in a production environment. The application can work efficiently if these three environments are automated