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A computer screen showing a background wallpaper photo of the Palace of Versailles. A wallpaper or background (also known as a desktop background, desktop picture or desktop image on computers) is a digital image (photo, drawing etc.) used as a decorative background of a graphical user interface on the screen of a computer, smartphone or other electronic device.
Background extinction rate; Background independence, a condition in theoretical physics; Background noise; Background radiation, the natural radiation that is always present in a location Background (astronomy), small amounts of light coming from otherwise dark parts of the sky; Cosmic background (disambiguation) Gravitational wave background
Background radiation is a measure of the level of ionizing radiation present in the environment at a particular location which is not due to deliberate introduction of radiation sources. Background radiation originates from a variety of sources, both natural and artificial.
Cosmic background radiation is electromagnetic radiation that fills all space. The origin of this radiation depends on the region of the spectrum that is observed. One component is the cosmic microwave background .
The anisotropy, or directional dependency, of the cosmic microwave background is divided into two types: primary anisotropy, due to effects that occur at the surface of last scattering and before; and secondary anisotropy, due to effects such as interactions of the background radiation with intervening hot gas or gravitational potentials, which ...
A background process is a computer process that runs behind the scenes (i.e., in the background) and without user intervention. [1] Typical tasks for these processes include logging, system monitoring, scheduling, [ 2 ] and user notification.
A background check is a process used by an organisation or person to verify that an individual is who they claim to be, and check their past record to confirm education, employment history, and other activities, and for a criminal record. The frequency, purpose, and legitimacy of background checks vary among countries, industries, and individuals.
A backstory, background story, background, or legend is a set of events invented for a plot, preceding and leading up to that plot. In acting , it is the history of the character before the drama begins, and is created during the actor's preparation.