Cloud computing is the concept of making computing resources--data or software services for example--accessible through a remote, computer network. The term has proven so difficult to define that the National Institute of Standards and Technology has released 15 versions of the definition, with the latest published in October 2009.

According to NIST:

"Cloud computing is 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."

In an enterprise setting, cloud computing often falls into one of three models: Public cloud, private cloud and hybrid cloud.

The public cloud is perhaps the most commercial and mainstream model. A common scenario is a public cloud that allows users to access a self-service web application, hosted by a third party, such as Google's (NASDAQ: GOOG) Gmail. A private cloud model emulates the public cloud in an internal way, allowing an enterprise to host applications or virtual machines using its own resources within the firewall. A hybrid cloud, as the name suggests, combines both internal and external providers in a cloud environment.

Tag:

cloud computing

Latest Headlines

Latest Headlines

Report: Companies increasingly, but reluctantly, willing to move to Microsoft cloud services

Microsoft Partners say their clients are willing to move existing Microsoft enterprise environments like Office, Exchange, and SharePoint to the cloud, but not without some trepidation.

E-Spirit rolls out Corporate Content Cloud Initiative for 'true digital transformation'

CMS firm e-Spirit announced this week plans to help companies "achieve true digital transformation" with its new Corporate Content Cloud Initiative.

Spotlight: Menlo Security emerges from stealth mode, raises $25M to block malware

Menlo Security, a startup focused on cloud-based malware prevention, emerged from stealth mode on Monday and announced $25 million in funding.

Microsoft offers enterprises a lockbox in the cloud to secure sensitive data

To address cloud security concerns of enterprises, Microsoft unveiled on Monday a new cloud security technology called Verifiable Confidential Cloud Computing that offers a "lockbox" to protect cloud data when it is being accessed to make calculations or perform other tasks.

Take a lesson in app environment construction from Internap

Hosting provider Internap almost certainly works on a different scale than many of our readers, but a software developer at the company spoke with  FierceDevOps  this week about how the company spent three years building a very DevOps-focused development environment based on OpenStack. And there are lessons to be learned in setting up your own application development environments.

Spotlight: Puppet Enterprise 3.8 gets Docker, AWS management modules

The latest version of Puppet Labs' commercial management and orchestration tool adds support for Docker and expands existing management capabilities for Amazon Web Services. 

Radware launches WAF service that protects apps in the cloud and on premise

To help IT secure apps both in the cloud and on premise, security firm Radware launched on Monday what it claims is the first hybrid cloud Web application firewall service, providing both on-premise and cloud-based app protection against web-based cyberattacks.

ProfitBricks sets sights on DevOps with DevOps Central community, additional language support

ProfitBricks wants to make using the cloud less painful. Here's how.

OnLive's demise is unfortunate loss for enterprises

OnLive will shut its doors and delete all accounts on April 30.

Systemware launches Cloud Content 6.0, ECM with a nod to IT pros

ECM vendor Systemware released  Cloud Content 6.0  this week. It includes tools and functionality designed to make life easier for IT professionals as well as content administrators.