AL-501 Operating Systems Notes
5 notes for Operating Systems, unit by unit.
Notes for AL-501
- Unit 1 · Short notes Introduction to Operating Systems Function, Evolution, Different types of Operating Systems, Desirable Characteristics and features of an OS · Operating Systems Services – Types of Services, Different ways of providing these services (Commands, System Calls) · Need of System Calls, Low‑level implementation of System Calls, Portability issues · Operating System Structures
- Unit 2 · Short notes File Systems (Secondary Storage Management) File concept and the view of users versus system programmers · Hard‑disk organization, disk formatting and file‑system creation · Modules of a file system · Disk‑space allocation methods: contiguous, linked, indexed · Disk partitioning and mounting; directory structures; file protection · Virtual and remote file systems
- Unit 3 · Short notes Process Management Concept of a process and the process‑state diagram · Different types of schedulers and CPU‑scheduling algorithms; evaluation of scheduling algorithms · Threads – user‑level and kernel‑level, thread scheduling, multiprocessor/multicore scheduling · Case studies of process management in Unix/Linux and Windows; related system calls · Concurrency and synchronization – real/virtual concurrency, mutual exclusion, critical‑section problem, mutex locks, monitors, semaphores, WAIT/SIGNAL operations, classic synchronization problems, inter‑process communication · Deadlocks – characterization, prevention, avoidance, recovery
- Unit 4 · Short notes Memory Management Memory‑management techniques – contiguous allocation; non‑contiguous allocation (paging, segmentation, paged segmentation); comparative analysis · Virtual memory – concept, overlay, dynamic linking and loading, implementation by demand paging · Memory management approaches in Unix/Linux and Windows
- Unit 5 · Short notes Input/Output Management Mass‑storage structures and disk scheduling · I/O system models – program‑controlled, interrupt‑driven, concurrent I/O; synchronous/asynchronous and blocking/non‑blocking operations; I/O buffering; application I/O interface; kernel I/O subsystem; translation of I/O requests to hardware operations · Protection and security issues and mechanisms · Introduction to multiprocessor, real‑time, embedded and mobile operating systems · Overview of virtualization
More for AL-501
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- AL-503 (C) Optimization Techniques in Machine Leaning
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- AL-504 (B) Natural Language Processing
- AL-504 (C) Computational Intelligence