1. what is an OS ? what are the services provided by OS?

01 Intro to OS

2. Types of OS with merits and demerits

02 Types of OS

3. describe process control block in OS

02 Process Control Block PCB

4. process and process states

01 Process and Process States

5. paging and demand paging

05 paging

6. physical vs logical address

02 Physical and logical address spaces

7. Process scheduling Algorithms

04 Process scheduling algorithms

8. Page replacement algorithms

06 Page replacement algorithms

9. Conversion of virtual address to physical address