Subject Details
Dept     : AIML
Sem      : 4
Regul    : 2019
Faculty : Mr.K.S. Mohan
phone  : NIL
E-mail  : tok.s.mohan@gmail.com
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Lecture Notes

UNIT 1:
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Computer System Organization, Architecture, Operation
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Process Management –Memory Management
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Storage Management
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Operating System – Process concept - Process scheduling
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Inter process communication
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Threads Basic Models
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Multi-threading Models- Threading issues
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Operations on processes
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Cooperating processes
UNIT 2:
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CPU Scheduling: Scheduling criteria
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Scheduling algorithms
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Multiple-processor scheduling – Real time scheduling – Algorithm Evaluation
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Process Synchronization: The critical-section Problem- Synchronization hardware
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Semaphores
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Deadlock: System model – Deadlock characterization- Methods for handling deadlocks -Deadlock prevention
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Deadlock avoidance
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Deadlock detection – Recovery from deadlock
UNIT 3:
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Memory Management: Background
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Swapping – Contiguous memory allocation
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Segmentation – Segmentation with paging
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Segmentation – Segmentation with paging
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Virtual Memory: Background – Demand paging
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Process creation – Page replacement
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Allocation of frames – Thrashing.
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Allocation of frames – Thrashing.
UNIT 4:
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File concept – Access methods
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File System Implementation: Directory implementation
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Files System Mounting – File Sharing – Protection.
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Allocation methods
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Free-space management – Efficiency and Performance
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Directory structure
UNIT 5:
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I/O Systems – I/O Hardware
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Streams – performance
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Mass - Storage Structure: Disk scheduling
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Application I/O interface – Kernel I/O subsystem