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

6 new IT roles you need to fill

Several recent job studies have suggested that hiring for IT professionals in general is cooling off, but demand remains high for a number of specialized jobs. Unfortunately, a minority of organizations are properly preparing for those job needs ahead of time. 

These items will top your IT shopping list in 2015

The final months of each year are always ripe with articles predicting what will be hot in the coming year. With that in mind, CIOs are being offered advice on the 10 key technology items they should budget for in 2015.

Accellion announces new cloud content connectors for Box, Dropbox

Mobile file sharing vendor Accellion announced this week the availability of a collection of kiteworks cloud content connectors for Box and Dropbox. The new integration gives IT managers control over content employees are storing in the cloud while allowing users to access content from either side of the firewall.

Dice study reveals fastest-growing IT skills

CIOs looking to hire IT pros this quarter can expect to pay more for certain top in-demand skills, including those involving big data, cybersecurity and cloud computing, a new Dice study finds.

Gartner: Enterprises turning to security services for data protection, security risk management

More than half of enterprises will use security services firms that specialize in data protection, security risk management and security infrastructure management to enhance their security postures by 2018, predicts market research firm Gartner.

News Scan: IT could save 20-30% of its annual budget through cloud; Southern states still best for IT hiring opportunities; More

The top news stories for Sept. 9, 2014.