Operating Systems
Android app by StudyZoom. Education · StudyZoom
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- Free to download
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- 1.1
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- 2026-09-13
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📚 Operating Systems (2025–2026 Edition) is a complete syllabus book designed for BSCS, BSIT, Software Engineering students, researchers, software developers, and competitive programmers who want to gain a strong understanding of modern operating systems. This edition provides MCQs, and quizzes to ensure both academic excellence and practical mastery. The book covers all the core areas of operating systems including process management, CPU scheduling, synchronization, memory management, storage systems, I/O handling, security, and distributed operating systems. Students will also explore case studies of Windows, Linux, MacOS, and mobile OS along with virtualization and cloud computing concepts. With a balance of theory and implementation, learners will develop the ability to analyze, design, and simulate real-world OS mechanisms while understanding both classical models and modern trends. 📂 Chapters & Topics 🔹 Chapter 1: Introduction to Operating Systems – Definition, history, and goals of OS – Evolution of multitasking systems – OS structures (Monolithic, Layered, Microkernel, Hybrid) – OS services, system calls, APIs 🔹 Chapter 2: Process Management – Process states and PCB – Context switching – Process scheduling (preemptive & non-preemptive) – Threads and multithreading (user vs kernel) 🔹 Chapter 3: CPU Scheduling – Scheduling criteria – FCFS, SJF, Priority, Round Robin – Multilevel and Multilevel Feedback Queue scheduling 🔹 Chapter 4: Synchronization & Concurrency – Critical section problem – Semaphores, mutex, monitors – Classic problems: Producer-Consumer, Dining Philosophers – Deadlock conditions, prevention, avoidance, detection 🔹 Chapter 5: Memory Management – Contiguous allocation & fragmentation – Paging & segmentation – Virtual memory & demand paging – Page replacement algorithms (FIFO, Optimal, LRU, Clock) – Thrashing 🔹 Chapter 6: Storage and File Systems – Disk scheduling algorithms (FCFS, SSTF, SCAN, C-SCAN, LOOK) – RAID levels – File system concepts, access methods, directory structures – File allocation methods & protection 🔹 Chapter 7: I/O Systems – I/O hardware & kernel subsystem – Polling, interrupts, DMA – Performance issues and device management 🔹 Chapter 8: Security and Protection – Protection domains & access control – Security threats: malware, viruses, worms – Authentication methods – Encryption (symmetric & asymmetric), firewalls, IDS 🔹 Chapter 9: Distributed Systems & Advanced Topics – Distributed file systems & coordination – Cloud OS and virtualization – Mobile & real-time operating systems 🔹 Chapter 10: Operating System Case Studies – UNIX/Linux architecture – Windows architecture – Comparison: Linux, Windows, MacOS – Android & iOS overview 🔹 Chapter 11: Laboratory Work – Simulation of CPU scheduling & paging algorithms – Synchronization problem implementations – File system allocation simulation – Shell scripting in Linux 🌟 Why Choose this Book? ✅ Complete OS syllabus with mo
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