CS-405 Operating Systems Notes
5 notes for Operating Systems, unit by unit.
Notes for CS-405
- Unit 1 · Short notes Introduction to Operating Systems Function of an operating system · Evolution of operating systems · Different types of operating systems · Desirable characteristics and features of an operating system · Operating system services – types of services · Utility programs as service providers
- Unit 2 · Short notes File Systems Concept of a file and its abstraction · User’s and system programmer’s view of the file system · Disk organization and storage hierarchy · Tape organization · Modules of a file system · Disk space allocation methods – contiguous, linked, indexed
- Unit 3 · Short notes CPU Scheduling and Memory Management Process concept and life‑cycle · Scheduling concepts and criteria · Types of schedulers (long‑term, short‑term, medium‑term) · Process state diagram · CPU scheduling algorithms (FCFS, SJF, Priority, Round‑Robin, Multilevel, etc.) · Evaluation of scheduling algorithms
- Unit 4 · Short notes Input/Output and Concurrent Processes Principles of input/output systems · Programming I/O operations · I/O problems and solutions · Asynchronous I/O operations · Speed‑gap and format conversion issues · I/O interfaces and device controllers
- Unit 5 · Short notes Network, Distributed and Multiprocessor Operating Systems Introduction to network operating systems · Distributed operating system concepts · Multiprocessor operating system architectures · Case studies: Unix/Linux, Windows, and other contemporary operating systems
More for CS-405
Other 4th semester CSE subjects
- BT-401 Mathematics-III
- CS-402 Analysis Design of Algorithm
- CS-403 Software Engineering
- CS-404 Computer Org. & Architecture
- CS-406 Programming Practices