On-demand

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Look up on demand or -on-demand in Wiktionary, the free dictionary.

• Video on demand is a type of video or movie service which allows the viewer to access the media immediately upon subscription, such as streaming Internet or pay-per-view television offerings.
• On-demand computing may also be referred to as Utility computing, and most frequently refers to a type of computing service where the actual software is presented to the user, once a subscription to the service is successfully processed. In a typical "on-demand" computing model, the software is not actually installed at the user device, rather it is accessed via the Internet or centralized access point.
• On-demand software is typically delivered by an application service provider. This type of service offering is also frequently referred to as Software as a Service.
• Print on demand, also known as publishing on demand, is a type of publishing method used by low-quantity book publishers, whereby authors may have their materials available for print publication without investing the up-front costs of initial publication.

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