Different Definitions Of Cloud Computing

Cloud Computing is a fairly new term used to identify a type of computer connectivity, IT services and on-demand delivery offered via the web. The way that it works is, Cloud Computing offers an easy approach to accessing servers, storage, databases and a wide set of request over the Internet. Cloud Computing also allows cloud-based service providers to own and sustain the network-connected equipment necessary for these application services. This is all done while permitting a business to facilitate and use the services that are deemed essential via a web application (Amazon, 2016).

According to the official NIST definition:-“Cloud Computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications and sciences) that can be rapidly provisioned and released with minimal management efforts or service provider interaction.”

The national Institute of Standards and Technology under the department of Commerce defines Cloud Computing as “a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction”. Another definition for cloud computing is a term used to describe a network of computers that deliver information technology

Cloud Computing is a wide term that defines an extended kind of services. In order to actually comprehend how the Cloud can be of worth to an association, it is the first significant to understand what the Cloud truly is and its diverse mechanisms. The different categories of Cloud Computing services normally mentioned to as

According to the definition of cloud computing determined by NIST, cloud computing has following main characteristics.

Firstly, it is necessary to clearly explain the definition of cloud computing. Cloud computing is a delivery service model with five essential characteristics of cloud computing which includes: on-demand self service, broad network access, resource pooling, rapid elasticity and measured service. It is also a general term for anything that includes conveying facilitated administrations over the Internet.

Cloud computing includes three service models, it is important to differentiate between them because the service provided is not the same and they do not address the same users. The three service models are:

Cloud computing is one of those buzzword that can be misleading to people unfamiliar with cloud services. With regular computing, hardware and software is part of the desktop or it is located inside an organization 's network. Cloud computing is means the hardware, storage, and software is provided as a service by another company and accessed over the Internet. The first known reference to what is today called cloud computing was in a Compaq internal document in 1996, but the term did not enter true popularity until Amazon.com introduced the Elastic Compute Cloud. There are different types and delivery models of cloud computing and at the core of Cloud Computing is that a service provider hosts the application which means they will manage software updates, handle costs of servers or development depending on how much the client pays.

Cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction. (Reference: http://www.nist.gov/itl/cloud/)

Cloud computing as everyone knows is not a new technology however, it just surfaced the technology market space. The primary reason why cloud computing still sounds like an alien language to some business executives is that they can’t grasp easily the anatomy of cloud computing. As earlier flashed-on in the introduction part of this book, understanding the arrays of services offered, the way those services are distributed game players in cloud computing is important.

Cloud Computing is a process collecting the existing techniques and technologies , packaged within a new infrastructure that offers improved scalability , rapidly respond to change , faster start up time , reduced management costs and availability of resources for a short span of time .

There are a variety of definitions that are associated with cloud computing. However, the importance of how the technology is transforming business models greatly exceeds any specific definition. There are three components that are usually cited in any definition of cloud computing (Gabrielsson, Hubertsson, Mas, & Skog, 2010). The most commonly known component is the Software as a Service (SaaS). This allows organizations and consumers the ability to use software on demand and be billed for the usage on a per use basis.

The main purpose of the cloud technology from software perspective is to provide private and hybrid cloud, big data analytics, file storage, disaster recovery, and important backup. Generally, cloud providers offer services according to their models. There are mainly three standard models are available according to National Institute of Standards and Technology, which are Infrastructure as a Service (servers that allows user to store data and access the services), Platform as a Service (develop the software for the user to access cloud technology), and Software as a Service (graphical view of application, from where user can access cloud servers)

Cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction. This cloud model promotes availability and is composed of five essential characteristics, three service models, and four deployment models. Essential Characteristics: On-demand self-service. A consumer can unilaterally provision computing capabilities, such as server time and network storage, as needed automatically without requiring human interaction with each service’s provider. Broad network access. Capabilities are available over the network and accessed through standard mechanisms that promote use by heterogeneous thin or thick client platforms (e.g., mobile phones,

National Institute of Standards and Technology (NIST) [2] has risen up the meaning of cloud computing that is made out of “five vital attributes, three administration models, and four organization models”.