All questions of Operating System for SSC CGL Exam

Understanding the Role of Operating Systems in Process Management
The primary function of an Operating System (OS) in the context of process management revolves around efficient CPU utilization and the management of processes.
1. Definition of Process Management
- Process management involves overseeing the creation, scheduling, and termination of processes.
- A process is essentially a program in execution, which requires resources such as CPU time and memory.
2. Role in CPU Performance
- The OS is responsible for allocating CPU time to various processes, ensuring that all active processes receive adequate attention.
- It employs scheduling algorithms to determine which process runs at any given time, which helps in optimizing the overall performance of the system.
3. Monitoring and Control
- The OS continuously monitors process states (e.g., running, waiting, terminated) to keep track of process execution.
- It controls the execution of processes, enabling multitasking and ensuring that processes do not interfere with each other's operations.
4. Resource Management
- The OS also manages resources such as memory allocation and I/O operations for each process, ensuring that they operate smoothly without conflicts.
- By managing these resources, the OS can enhance the efficiency of process execution and maintain system stability.
Conclusion
In summary, option 'C' accurately reflects the primary function of an Operating System regarding process management. It is essential for overseeing the planning, monitoring, and performance of the CPU, ensuring that multiple processes can run efficiently and effectively.