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

Verizon: Stronger cybercrime security solutions will be a top enterprise tech trend next year

Investment in stronger cybercrime security solutions will be one of the top enterprises tech trends for 2015, according to Verizon Enterprise Solutions.

Will cloud, security hires break the bank in 2015?

CIOs are being warned to brace for an extremely competitive market for IT security professionals and virtually any cloud-related jobs in 2015, all of which should push salaries up significantly.

News Scan: Will 2015 see the demise of the CDO?; Behold, the birth of the cloud financial officer; More

The top news stories for Nov. 14, 2014.

News Scan: Ignore layoffs--tech sector doing OK; The slow death of the Internet tax bill, again; More

The top news stories for Nov. 12, 2014.

News Scan: New job studies paint a brighter IT hiring picture; More organizations worry about mobile security breaches; More

The top news stories for Nov. 10, 2014.

Cloud computing gets harder as companies invest more, research finds

Cloud computing has become firmly entrenched in IT. In fact, 90 percent of organizations say they are using some form of it, according to CompTIA.

News Scan: Starbucks says 1 in 6 payments now done via mobile; Cybersecurity, cloud, consolidation top state CIO priorities; more

The top news stories for Nov. 3, 2014.

IT still struggling with security in the cloud

A growing number of organizations are embracing cloud computing, but those that already have say managing security is still a major challenge.

News Scan: Hyper-scalability to top cloud storage trends; 'Head geeks' both IT and business savvy; More

The top news stories for Oct. 28, 2014.

News Scan: Study warns: Embrace big data, or else!; US Chamber urges government to support the digital economy; More

The top news stories for Oct. 9, 2014.