System

A system is a set of interacting or interdependent component parts forming a complex/intricate whole. Every system is delineated by its spatial and temporal boundaries, surrounded and influenced by its environment, described by its structure and purpose and expressed in its functioning.

The term system may also refer to a set of rules that governs structure and/or behavior. Alternatively, and usually in the context of complex social systems, the term is used to describe the set of rules that govern structure and/or behavior.

Etymology

The term "system" comes from the Latin word systēma, in turn from Greek σύστημα systēma: "whole compounded of several parts or members, system", literary "composition".

History

According to Marshall McLuhan,

"System" means "something to look at". You must have a very high visual gradient to have systematization. In philosophy, before Descartes, there was no "system". Plato had no "system". Aristotle had no "system".

In the 19th century the French physicist Nicolas Léonard Sadi Carnot, who studied thermodynamics, pioneered the development of the concept of a "system" in the natural sciences. In 1824 he studied the system which he called the working substance (typically a body of water vapor) in steam engines, in regards to the system's ability to do work when heat is applied to it. The working substance could be put in contact with either a boiler, a cold reservoir (a stream of cold water), or a piston (to which the working body could do work by pushing on it). In 1850, the German physicist Rudolf Clausius generalized this picture to include the concept of the surroundings and began to use the term "working body" when referring to the system.

Control system

A control system is a device, or set of devices, that manages, commands, directs or regulates the behaviour of other devices or systems. Industrial control systems are used in industrial production for controlling equipment or machines.

There are two common classes of control systems, open loop control systems and closed loop control systems. In open loop control systems output is generated based on inputs. In closed loop control systems current output is taken into consideration and corrections are made based on feedback. A closed loop system is also called a feedback control system.

Overview

The term "control system" may be applied to the essentially manual controls that allow an operator, for example, to close and open a hydraulic press, perhaps including logic so that it cannot be moved unless safety guards are in place.

An automatic sequential control system may trigger a series of mechanical actuators in the correct sequence to perform a task. For example various electric and pneumatic transducers may fold and glue a cardboard box, fill it with product and then seal it in an automatic packaging machine. Programmable logic controllers are used in many cases such as this, but several alternative technologies exist.

Control System

Control System is the second studio album by American hip hop recording artist Ab-Soul, released on May 11, 2012, via Top Dawg Entertainment. The album features guest appearances from Jhené Aiko, Danny Brown, Schoolboy Q, Jay Rock, BJ the Chicago Kid, Kendrick Lamar, JaVonte, Punch, Ashtrobot and vocals from the late Alori Joh. The album's production was handled by Digi+Phonics, King Blue, Nez & Rio, Skhye Hutch, Curtiss King, Aahyasis and Tommy Black.

Background

The album is Ab-Soul's fourth full-length project, which was preceded by numerous promotional singles, the first being "Black Lip Bastard" on January 17, 2012. The song was produced by Willie B. On February 28, 2012, Ab-Soul, along with Schoolboy Q, appeared on Sway Calloway's #SwayInTheMorning radio show, where Ab-Soul called "Black Lip Bastard": "pretty much one of the title tracks", the song, however, failed to make the album's final track listing. The first song that appears on the album, to be released was "Showin' Love", also produced by Willie B.

Active Sound

Active Sound (63°25′S 56°10′W / 63.417°S 56.167°W / -63.417; -56.167Coordinates: 63°25′S 56°10′W / 63.417°S 56.167°W / -63.417; -56.167) is a sound, averaging 2 miles (3 km) wide, extending in an east-northeast direction from Antarctic Sound and joining the Firth of Tay with which it separates Joinville and Dundee Islands. Discovered in 1892–93 by Captain Thomas Robertson of the Dundee whaling expedition. Robertson named the feature after his ship, the Active, first vessel to navigate the sound.

 This article incorporates public domain material from the United States Geological Survey document "Active Sound" (content from the Geographic Names Information System).

Control

Control may refer to:

Management and finance

Science and technology