What is system?

COMPUTER PRESENTATIONBY: NEHULCLASS: B-Ed (2014-2015ROLL NO.192

COMPONENTS AND WORKING OF SYSTEM

What is system?The term system is derived from the greek word systema, which means an organised relationship among functioning units or components. A system exists because it is designed to achieve one or more objectives.

Definition A system is an orderly grouping of interdependent components linked together according to a plan to achieve a specific objective. The word components may refer to physical parts ( engines, wings of aircraft, computer hardware, etc), managerial steps ( planning, organizing, directing, coordinating, and controlling), or a subsystem in a multilevel structure.

Components and working of system. INPUT- Input involves capturing and assembling elements that enter the system to be processed. A system feeds on input to produce output in much the same way that a business brings in human, financial, and material resources to produce goods and services.

PROCESSOR- The processor is the element of a system that involves the actual transformation of input into output. It is the operational component of a system. Processors may modify the input partially or totally, depending on the specifications of the output. This means as the output specification change, so does the processing.

OUTPUT- A major objective of a system is to produce an output that has a value to its user. Whatever the nature of the output ( goods, services, or information), it must be in line with the expectations of the intended user. Determining the output is a first step in specifying the nature, amount, and regularity of the input needed to operate a system.

CONTROL- The control element guides the system. It is the decision-making sub-system that controls the pattern of activies governing input, processing and output. In an organisation context, management as a decision-making body controls the inflow, handling, and outflow of activities that affect the welfare of the business.

FEEDBACK- Control in a dynamic system is achieved by feedback. Feedback measures output against a standard in some form of cybernetic procedure that includes communication and control. Feedback may be positive and negative, routine or informational. Positive feedback reinforce the performance of the system. It is rountine in nature. Negative feedback generally provides the controller with information for action.

ENVIRONMENT- The environment is the supersystem within which an organisation operates. It ia the source of external elements that impinge on the system. It is the environment that determines how a system must function.

BOUNDARIES AND INTERFACE- A system should be defined by its boundaries the limits that indentify its components, processes, and interrelationship when it interfaces with another system.

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