A system is a set of entities, real or abstract, comprising a whole.
System may also refer to:
Science and technology Biological system, a complex network of biological entities, for instance, a group of organs Ecosystem, an entity comprising a large number of organisms and their environment Energy system, an interpretation of the energy sector in system terms Binary system (disambiguation), term is used for multiple purposes, such as: Binary system (astronomy), a system of two celestial bodies on a mutual orbit Star or stellar system, is a system of any multiple number of stars Planetary system, gravitationally bound non-stellar objects in or out of orbit around a star or star system Satellite system (astronomy), is a set of gravitationally bound non-planetary objects in orbit of a planetary mass object or minor planet, or its barycenter Ring system, is a system of cosmic dust or moonlets, forming rings around, and gravitationally bound to a host non-stellar body. Physical system, that portion of the physical universe chosen for analysis Thermodynamic system, a body of matter and/or radiation, confined in space by walls, with defined permeabilities, which separate it from its surroundings Systems science, an interdisciplinary field that studies the nature of complex systems in nature, society, and science System (stratigraphy), a unit of the geologic record of a rock column Systems engineering, a field about design, integration, and management of complex systems System of equations, a set of mathematical equations
Computing Computer system, the combination of hardware and software which forms a complete, working computer Operating system system, a C process control function in the C Standard Library used to execute subprocesses and commands System (typeface), a raster font packaged with Microsoft Windows
Social science Economic system, covering the production and distribution of goods and services Social system, based on the interrelationships between individuals, groups, and institutions
Music System (music notation), a collection of staves to be played simultaneously System (album), a 2007 album by Seal "System", a song by Chester Bennington from the Queen of the Damned soundtrack "System", a song by Jonathan Davis on his 2007 album Alone I Play "System", a song by Labelle on their 2008 album Back to Now "System", a song by Reks on his 2009 album More Grey Hairs "System", a song by Dave on his 2021 album We're All Alone in This Together System, a Danish electronic trio consisting of Anders Remmer, Jesper Skaaning, and Thomas Knak System of a Down, an Armenian-American heavy metal band also known as "System"
Other uses System (journal), a scientific journal System (magazine) "System" (The Bear), the pilot episode of The Bear TV series "System", the collective term for all of a plural person's headmates
See also Classic Mac OS versions 1 through 7 were known as "System 1" through "System 7" Meta-system, something composed of multiple smaller systems The System (disambiguation) Systematics (disambiguation) Systema (disambiguation) List of systems engineering images Government Law Bureaucracy