Operating System AKTU Notes (Quantum) PDF Free Download

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Operating System Notes for Engineering pdf Syllabus

Unit – I

Introduction: Operating Systems and Functions, Classification of Operating Systems- Batch, Interactive, Time Sharing, Real Time Systems, Multiprocessor Systems, Multiuser Systems, Multiprocess Systems, Multithreaded Systems, Operating System Structure- Layered Structures, System Components, Operating System Services, Reentrant Kernels, Monolithic and Microkernel Systems.


Concurrent processes: process concept, concurrent principles, manufacturer/consumer problem, mutual exclusion, critical section problem, Decker’s solution, Peterson’s solution, semaphore, test and set operation; The classical problem in concurrent—the food philosophical problem, the sleeping barber’s problem; Inter-process communication models and plans, process construction.


CPU Scheduling: Scheduling Concepts, Performance Criteria, Process State, Process Transition Diagram, Scheduler, Process Control Block (PCB), Process Address Space, Process Identification Information, Threads and their management, scheduling algorithms, multi-processor scheduling. Deadlock: System model, standoff characterization, prevention, rescue and detection, recovery from standoff.


Memory Management: Basic Bare Machine, Resident Monitor, Multiprogramming with fixed partition, Multiprogramming with variable partition, Security Schemes, Paging, Segmentation, Paged Segmentation, Virtual Memory Concepts, Demand Paging, Performance of Demand Paging, Page Replacement Algorithms, Thrashing, Cache Memory Organization, Locality of Reference.


I/O management and disk scheduling: I/O devices, and I/O subsystems, I/O buffering, disk storage and disk scheduling, RAID. File systems: file concepts, file organization and access mechanisms, file directories, and file sharing, file system implementation issues, file system protection and security.

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