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systems design
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systems design

In computing, the detailed design of an applications package. The designer breaks the system down into component programs, and designs the required input forms, screen layouts, and printouts. Systems design forms a link between systems analysis and programming.

Systems are a series of blocks fitted together in a logical sequence. All systems have an input where information is put into a system, a process where the information is altered, and an output which communicates with the outside world. There are many different types of systems, including computer systems, mechanical systems, and electronic systems.

Some systems have subsystems within the main system. Some have feedback loops. Feedback loops pass information from one part of the system back to an earlier part. Positive feedback senses a signal and sends information back so that the signal is amplified. Negative feedback senses the signal and sends information back so that the signal is reduced. Feedback loops are a way of controlling a system. Systems can also be controlled by using sensors and switches. Control of a system can be external, using inputs such as switches, or it can be internal using devices such as feedback loops.
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