Function & types of operating system
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Transcript of Function & types of operating system
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SHOWROV AHMEDD e p a r t m e n t O f S o f t w a r e E n g i n e e r i n g , D a f f o d i l I n t e r n a t i o n a l U n i v e r s i t y
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HOW DO A USER COMMUNICATE WITH HIS/HER COMPUTER?
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FUNCTION OF OPERATING SYSTEM
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Start And Shut down computerProviding a user interfaceManaging ProgramManaging memoryCoordinating Task And Configuring DeviceMonitor PerformanceEstablished a Internet ConnectionProvide File Manager And other ToolsUpdate AutomaticallyControl a network
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MAINFRAME OSSERVER OSMULTIPROCESSOR OSPERSONAL COMPUTER OSHANDHELD COMPUTER OSEMBEDDED OSSENSOR NODE OSREAL TIME OSSMART CARD OS
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SUPPORTS THOUSANDS OF DEVICESTO SIMULTIANEOUSLY SERVE THOUSANDS OF USERS
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SERVER OS
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MULTIPROCESSOR OS
CPU
MULIPLE CPU’S IN A SINGLE SYSTEM, OR MULTIPROCESOR. MANY POPULAR OS, WINDOWS,LINUX RUN ON MULTIPROCESSORS.
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PERSONAL COMPUTER OS
PERSONAL COMPUTER OPERATING SYSTEM-SUPPORT MULTIPROGAMMING,THEIR JOB IS TO PROVIDE GOOD SUPPORT TO A SINGLE USER 14
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HANDHELD COMPUTER OS
HANDHELD OS ARE SOPHISTICATED,WITH THE ABILITY TO HANDLE TELECOMPANY,DIGITAL PHOTOGRAPHY ETC ALSO RUNS THIRD PARTY APPS
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EMBEDDED OS
RUNS ON COMPUTERS THAT CONTROL DEVICES THAT ARE NOT GENERALLY THOUGHT OF AS COMPUTERS AND WHICH DO NOT ACCEPT USER-INSTALLED SOFTWARE
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SENSOR NODE OS
PROGRAMS ARE LOADED IN ADVANCE,DESIGN SIMPLER.TINY OS IS A WELL-KNOWN OPERATING SYSTEM OF A SENSOR NODE. 17
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REAL TIME OS
A real time operating system is used in real time computers. For this operating system, time is the main parameter. Real time system can be classified to:
a) Hard real time system: In a hard real time system an action has to happen in particular time duration. It is used in industries, avionics, military, etc.
b) Soft real time system: In a soft real time system actions can be delayed without any side effects. It is used in digital telephones and multimedia systems.
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A smart card is a small card with integrated chip. A smart card is used for authenticating a user, for payment processing, to identify a user, etc. For Example of a smart card operating system: MULTOS.
SMART CARD OS
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