Cloud Computing : On Demand Computing

Cloud computing is one of the fastest growing segment of Information technology today. In simple words cloud computing means storing and accessing data and programs over the internet instead on the computer's hard drive which can be accessed from any part of the world if the individual are connected to the internet or a network connection is available 24/7. A simple example of cloud computing is g-mail. With the connection of internet through any medium we can send and receive emails.

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).

Cloud computing is an emerging technology. With its huge demand, it is rapidly growing. Cloud computing is defined as "a type of Internet-based computing", where different services such as servers, storage and applications are delivered to an organization’s technological infrastructure through the Internet.

Cloud computing is an internet based computing which provides various applications and services like storage, servers, infrastructure, networking with low cost, on-demand self service, pay as you go model, location independent resource pooling, reasonable price , rapid elasticity etc. Cloud computing is one way to increase the capacity add capabilities without investing in new infrastructures like computer hardware involves storage memory, licensing for new software, training for a person and in a dynamic way.

Cloud computing can be viewed as one of the most rapidly growing and evolving paradigm.Webmail,online storage and online documents are most famous examples in which customers can access their data via web browsers on the internet. The original idea of the cloud computing was delivered by J.C.R Licklider in sixties (Mohamed 2009). Cloud computing has developed since then and started to server the publics after internet offered a significant bandwidth in the nineties (Mohamed 2009). Cloud computing has been through many different phases and is still rapidly evolving.

Cloud computing describes anything involving the delivery of hosted services over the Internet. The service takes it names from the cloud symbol used to represent the Internet in flowcharts and diagrams. Due to significant innovations in virtualization and distributed computing, along with improved access to high-speed Internet and a weak economy, interest in cloud computing has increased substantially in recent years (TechTarget, 2007).

Cloud Computing is a process of delivering a companies or individual’s applications and documents from any place, at any time, on any device. It is also a process in which hosted services are delivered through the internet.

Cloud computing is an advanced IT model to host and share both software and hardware resources over the Internet. It allows organisations to use a pool of IT resources

Cloud computing, or “the cloud”, is defined by NIST as; “...a model for enabling 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.” [1]

Cloud computing is the practice of using remote network servers via the Internet to manage, store and process data. Many businesses use cloud computing because in a lot of cases it can be cheaper, faster and easier to maintain then local servers. Since its introduction cloud computing has grown to not only be used by businesses but also regular Internet. Cloud computing services such as Google Docs, Dropbox and more are one of the reasons for this shift. They allow the user to access their files whenever and wherever they want.

Cloud computing is the delivery of on-demand computing resources which include everything from applications to data centers over the Internet on a pay-for-use basis. Cloud computing is the result of evolution and adoption of existing technologies and paradigms. The goal of cloud computing is to allow users to take benefit from all of these technologies, without the need for deep knowledge about or expertise with each one of them. The cloud aims to cut costs, and help the users focus on their core business instead of being impeded by IT obstacles Cloud computing is so named because the information being accessed is found in the "clouds", and does not require a user to be in a specific place to gain access to it. The services are offered from data centers all over the world, which collectively are referred to as the "cloud." The idea of the "cloud" is to simplify the huge network connections and computer systems involved in online services. Cloud computing is a computing model, not a technology. In this model of computing, all the servers, networks, applications and other elements related to data centers are made available to IT and end users. Cloud computing is a type of computing that is comparable to grid computing. It relies on sharing computing resources rather than having local servers or personal devices to handle applications.

The Cloud Computing refers to “Computing over the Internet”.It came from Grid,utility and web services.It is a combination of network,servers,storage ,operating system and virtualization technologies to form a shared infrastructure that enables web-based value added services.End users access cloud-based applications through a web browser or a light-weight desktop or mobile application.The business software and user 's data are stored on servers at a remote location. The cloud model comprises five

A cloud is a unique information technology (IT) environment which has been designed for the purpose of provisioning, scalable and measured information technology resources remotely. Cloud Computing Service provides IT as a service over the internet on demand basis and the payment is based on usage. Cloud computing services are provided from development platforms and full applications to servers and storage. Cloud computing is a pervasive advancement which gives a beneficiary way to the clients to benefit the cloud applications on interest. It refers to the network service in which services are provided with assured QoS, affordable computing infrastructures with an easy and simple access on demand and is enabled

Cloud Computing is a paradigm that enables access to shared pool of system resources which are provisioned with minimal management effort.

Cloud Computing is a sеrvicе which is providеd by an intеrnеt basеd clouds .Thеsе clouds arе basically low cost sеrvеrs or PCs which managеs largе amount of data of many computеrs еasily.it oеrs various advantagеs likе safеty of data, rеliability, spееd of accеss to data and transparеncy. It is dе nеd as mеthod of using a nеtwork of rеmotе sеrvеr hostеd on thе intеrnеt to storе, managе and procеss data rathеr than storing on pеrsonal computеr is callеd cloud computing.