Operating System

Unit - I

Operation system overviews: Operative systems - Objectives and functions - Evaluations of operating systems - Major achievements - Processes describes and control - Processes - Process states - Processes distribution and control.

Unit - II

Threads, Concurrency - principal of concurrency - dual expression - Messing passing - Dead lock: Principal of dead lock - dead lock prevention - dead lock avoidance - dead lock detection.

Unit - III

Memory management : Requirements - memory partitioning - paging - segmentation - virtual memory : Hardware and control structures - Operation system software.