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in structure chart whole application is divided into modules set of program instructions and modules are designed according to some principles of
q explain the structured design of systemstructured design utilizes graphic description output of system analysis and focuses on development of
q structured analysis and design approachthe objective of structured system analysis and design is to reduce maintenance time as well as effort
q approaches for development of information systemsnumerous approaches are available for development of information systems they are as belowbull
q show the divide and conquer approachdivide and conquer approach is the way of making a complicated problem easier in this approach larger
development of information system must be considered as capital investment the developer of an information system must think about different
q standards used for development of a systemdocumentation standards it must be an ongoing activity at the time of system development life
q principles for developing successful system1 both developers and customers must be involved for accuracy in the information2 a problem
q layers of distributed system architecturelayers of distributed system architecture are presentation layer is actual user interface this layer
q explain about distributed systemsa distributed system in that data process and interface component of information system are distributed to many
q hard and soft real time systems hard real time systems that guarantee critical tasks are completed on time soft real time systems that are less
q explain real time systema real time system defines an interactive processing system with severe time limitations a real-time system is used
real life business subsystems a subsystem is a component of a system even though it can also be described as a system in its own right consider a
q explain automated and manual systemsautomated and manual systems the system that doesnt need human intervention is known asautomated system in this
closed system its isolated from environment influences it operates on factors within system itself it is also described as a system which involves a
q explain about open systemthe open system is a system within its environment it receives input from environment as well as provides output to
q describe about physical systemsphysical systems are tangible entities which may be dynamic or static computer systems buildingsvehicles etc
q define a formal systema formal system is one which is planned in advance and is used according to schedule in this system procedures and policies
classification of systemssystems may be categorized as followsa formal or informalb abstract or physicalc closed or opend automated
purpose environment boundary inputs and outputs are a number of important terms related to systems a systems objectivepurpose is the reason for its
q define diffrent aspects of a systemthe aspects of a system are as below organization implies order and structure it is aprearrangement of
system is a word which is derived from the greek word systema which means an organized relationship among componentsa system can be defined as
q explain about interrupt procedurethe interrupt procedure uses request header to conclude the function requested by dos it also performs all
q define strategy procedurethe strategy procedure is called when loaded into memory by dos or whenever controlled device request service the major
q illustrate header section of a device driverheader comprises information which allows dos to identify the driver it also comprises pointers which