Abstract: A virtual power manager provides for, when plural virtual machines are running, accessing these virtual machines to determine their respective virtual-machine power settings and determining hardware power settings at least in part as an aggregate function of the virtual-machine power settings.

Abstract: A system comprises an energy source that provides a system current for the system. The system also comprises logic coupled to the energy source. The logic receives an analog signal that is derived from a measurement of current in the system and computes an amount of energy consumed by the system based on the analog signal.

Abstract: Example embodiments disclosed herein relate to determination of display device power consumption. In example embodiments, an operating parameter of a display device of a computing device is received, which, in some embodiments, may be a current level of brightness of the display device. A level of power consumption of the display device may then be determined based on the operating parameter.

Abstract: A computer has components having respective baseline component settings and non-baseline component settings. The computer includes storage media encoded with a program for comparing power consumption when non-baseline settings are in effect with power consumption when a baseline computer setting is in effect to determine power-consumption values to be stored in a database.

Abstract: A system comprises an energy source that provides a system current for the system. The system also comprises logic coupled to the energy source. The logic receives an analog signal that is derived from a measurement of current in the system and computes an amount of energy consumed by the system based on the analog signal.

Abstract: Apparatus and methods are provided for use with smart utility grids. A smart power supply includes power metering to determine instantaneous and cumulative energy consumption of the power supply and a computer coupled thereto. Communications transceivers enable the smart power supply to communicate with both the computer and smart entities of a smart utility grid. A user of the computer can view energy consumption data, utility rates, utility loading and other energy-related information by way of the smart power supply.

Abstract: A virtual power manager provides for, when plural virtual machines are running, accessing these virtual machines to determine their respective virtual-machine power settings and determining hardware power settings at least in part as an aggregate function of the virtual-machine power settings.

Abstract: A program arrangement presently disclosed provides support within an operating system for a commonly used class of peripheral devices (e.g. mouse devices or, more generally, pointing devices). This arrangement effectively eliminates dependencies between device driver software associated with the supported device(s) and system (and/or application) software; so that device driver software can be created without extensive knowledge of the operating system and system software can be modified cost effectively without affecting the usefulness of existing device drivers. In this arrangement, device driving functions are assigned to two discretely separate program modules having a standardized interface. One module, included in the operating system, provides a device-independent base for coordinating device and system interaction. The other module is associated specifically and directly with supported devices, and can be created by programmers having little knowledge of the internal structure of the system software.