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Describe the various operating system structure, explain the following…
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Monolithic architecture
Monolithic OS kernel architecture
Application (user space) > System Call Interface (kernel space) > Kernel : MM, PS, IPC, FS, I/O, NET . . .
Example of monolithic OS : a) OS/360 , VMS , Linux , BSD Unix , Windows
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Microkernel Architecture
The micro-kernel architecture allows us to build a number of different operating system all using the same micro-kernel .
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Microkernel validate message , passes them between the components and grants access to hardware .
Example : C-DAC microkernel , Mach , Windows NT , Chorus
Describe various architecture of operating systems used in different platforms :
single processor system , multiprocessor system and clustered system
single processor system : there is ONE main CPU capable of executing a general-purpose instruction set ,including instructions from user processes .
clustered system : it consist of two or more individual system that are tied together and share thr same storage space , also closely attached through a LAN network.
It makes use of multiple CPU's to complete a specific task.
multiprocessor system : processing system where two or more processors work together to process more than one program at one time .
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