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

News Scan: New York drafts nation's first Bitcoin regulations; Identifying most common big data mistakes; more.

The top news stories for July 21, 2014.

Reading the tea leaves of Amazon's Zocalo cloud storage service

Amazon Web Services is attempting to again court the enterprise crowd with a new document storage and sharing service called  Zocalo. Primary tools include security and permission management, authentication, any-device access, versioning and annotation.

Cloud skills now a must for every CIO

Cloud computing is becoming a game changer for many organizations, and that means the IT manager of the future needs to be well-versed in all things cloud.

News Scan: Tablets and mobile devices topple PCs; Employees not into ESNs; more

The top news stories for July 9, 2014.

News Scan: BYOD fear and loathing; Cyber threats more worrisome than ever; more

The top news stories for July 8, 2014.

Gartner: Top IT security tech for enterprises

Enterprises are facing increasing security risks from attackers, malicious insiders and new technologies that improve productivity but also open up security holes. Gartner advises enterprises to consider deploying the latest security technology to combat these threats.

News Scan: BYOD not government's best option; Freelancers in high demand for IT; more

The top news stories for June 24, 2014.

News Scan: Data breaches most costly in cloud; Fewer companies support BYOD; more

The top news stories for June 20, 2014.

News Scan: Some CEOs still resist the cloud; Public Wi-Fi now a must for small businesses; more

The top news stories for June 19, 2014.

Recruiters struggle to get cloud hiring right

The growing adoption of cloud computing is placing greater demand on IT pros with cloud-based experience, but many organizations complain that it's too hard to fiind IT talent with the right skills.