Operating Systems

OBJECTIVES:

• Study the basic concepts and functions of operating systems.

• Understand the structure and functions of OS.

• Learn about Processes, Threads and Scheduling algorithms.

• Understand the principles of concurrency and Deadlocks.

• Learn various memory management schemes.

• Study I/O management and File systems.

• Learn the basics of Linux system and perform administrative tasks on Linux Servers.

UNIT I:

Introduction to Operating System Concept: Types of operating systems, operating systems concepts, operating systems services, Introduction to System call, System call types.

UNIT-II:

Process Management – Process concept, The process, Process State Diagram , Process control block, Process Scheduling- Scheduling Queues, Schedulers, Operations on Processes, Interprocess Communication, Threading Issues, Scheduling-Basic Concepts, Scheduling Criteria, Scheduling Algorithms.

UNIT-III:

Memory Management: Swapping, Contiguous Memory Allocation, Paging, structure of the Page Table, Segmentation Virtual Memory Management: Virtual Memory, Demand Paging, Page-Replacement Algorithms, Thrashing

UNIT-IV:

Concurrency: ProcessSynchronization, The Critical- Section Problem, Synchronization Hardware, Semaphores, Classic Problems of Synchronization, Monitors, Synchronization

Examples:

Principles of deadlock – System Model, Deadlock Characterization, Deadlock Prevention, Detection and Avoidance, Recovery form Deadlock

UNIT-V:

File system Interface- the concept of a file, Access Methods, Directory structure, File system mounting, file sharing, protection. File System implementation- File system structure, allocation methods, free-space management Mass-storage structure overview of Mass-storage structure, Disk scheduling, Device drivers,

UNIT VI:

Linux System: Components of LINUX, Interprocess Communication, Synchronisation, Interrupt, Exception and System Call. Android Software Platform: Android Architecture, Operating System Services, Android Runtime Application Development, Application Structure, Application Process management

OUTCOMES:

• Design various Scheduling algorithms.

• Apply the principles of concurrency.

• Design deadlock, prevention and avoidance algorithms.

• Compare and contrast various memory management schemes.

• Design and Implement a prototype file systems.

• Perform administrative tasks on Linux Servers

• Introduction to Android Operating System Internals