Abstract: A dynamic software provisioning system allows provisioning software on a number of different computing devices based upon a desired business process. The dynamic software provisioning system allows a user to request usage of the operating system for a specific period of time, for a specific amount of usage, or in any other desired manner from an operating system provisioning service or from a third party. The provisioning service processes the request from the user or from the third party to provision the use of the operating system and in response to the request provisions use of the operating system for a specific device specified by the request. The dynamic software activation system also includes a local provisioning module located on the device using the operating system, wherein the local provisioning module activates and deactivates the operating system based on instructions received from the provisioning service.

Abstract: A system and method for maintaining persistent data during an unexpected power loss uses a memory controller and a supplemental power source. An entity running on the computer, for example, an application program, a utility, the operating system or other entity, may identify data for preservation using an application program interface. The application program interface may be provided by the memory controller. A sensor determines when an unexpected power loss has occurred and signals the memory controller. Using power from the supplemental power source, i.e. a battery or capacitor, the memory controller copies the identified data to a non-volatile memory. The memory controller may set a flag to indicate that preserved data is available for later recovery.

Abstract: A method and apparatus for saving, retrieving, and adjusting metering data uses information about the period between saves of the metering data to non-volatile memory and other information, for example, a number of recovery events experienced by the computer. The retrieved metering data may be adjusted according to the number of recovery events so that more frequent power interruptions cause metering data adjustments to favor a service provider. The time between data saves may be altered to increase the difficulty of timing attacks. Information about the time between saves, or the period of the save cycle, may also be stored with the metering data for use in the metering data restoration process.