Operating System Tutorial

Operating System Tutorial Types of Operating System Evolution of Operating System Functions of Operating System Operating System Properties Operating System Services Components of Operating System Needs of the Operating System

Operating Systems

Linux Operating System Unix Operating System Ubuntu Operating System Chrome Operating Systems Fedora Operating System MAC Operating System MS Windows Operating System Solaris Operating System Cooperative Operating System CorelDRAW Operating System CentOS FreeBSD Operating Systems Batch Operating System MS-DOS Operating System Commercial Mobile Operating Systems

Differences

Difference Between Multi-programming and Multitasking Difference between C-LOOK and C-SCAN Difference between Rotational Latency and Disk Assess Time Trap vs Interrupt Difference between C-SCAN and SSTF Difference between SCAN and FCFS Difference between Seek Time and Disk Access Time Difference between SSTF and LOOK Difference between Process and Program in the Operating System Difference between Protection and Security in Operating System

How To

How to implement Monitors using Semaphores How to Install a Different Operating System on a PC

Questions

What is Kernel and Types of Kernel What is DOS Operating System What is Thread and Types of Thread What is Process Scheduler and Process Queue What is Context Switching What is CPU Scheduling What is Producer-Consumer Problem What is Semaphore in Operating System Monitors in Operating System What is Deadlock What is Paging and Segmentation What is Demand Paging What is Virtual Memory What is a Long term Scheduler What is Page Replacement in Operating System What is BSR Mode What is Convoy Effect What is Job Sequencing in Operating System Why is it critical for the Scheduler to distinguish between I/O-bound and CPU-bound programs Why is there a Need for an Operating System

Misc

Process Management Process State Scheduling Algorithm FCFS (First-come-First-Serve) Scheduling SJF (Shortest Job First) Scheduling Round-Robin CPU Scheduling Priority Based Scheduling HRRN (Highest Response Ratio Next) Scheduling Process Synchronization Lock Variable Mechanism TSL Mechanism Turn Variable Mechanism Interested Variable Mechanism Deadlock Avoidance Strategies for Handling Deadlock Deadlock Prevention Deadlock Detection and Recovery Resource Allocation Graph Banker’s Algorithm in Operating System Fixed Partitioning and Dynamic Partitioning Partitioning Algorithms Disk Scheduling Algorithms FCFS and SSTF Disk Scheduling Algorithm SCAN and C-SCAN Disk Scheduling Algorithm Look and C-Look Disk Scheduling Algorithm File in Operating System File Access Methods in Operating System File Allocation Method Directory Structure in Operating System N-Step-SCAN Disk Scheduling Feedback Queue in Operating System Contiguous Memory Allocation in Operating System Real-time Operating System Starvation in Operating System Thrashing in Operating System 5 Goals of Operating System Advantages of Operating System Advantages of UNIX Operating System Bit Vector in Operating System Booting Process in Operating System Can a Computer Run Without the Operating System Dining Philosophers Problem in Operating System Free Space Management in Operating System Inter Process Communication in Operating System Swapping in Operating System Memory Management in Operating System Multiprogramming Operating System Multitasking Operating Systems Multi-user Operating Systems Non-Contiguous Memory Allocation in Operating System Page Table in Operating System Process Scheduling in Operating System Segmentation in Operating System Simple Structure in Operating System Single-User Operating System Two Phase Locking Protocol Advantages and Disadvantages of Operating System Arithmetic operations in binary number system Assemblers in the operating system Bakery Algorithm in Operating System Benefits of Ubuntu Operating System CPU Scheduling Criteria in Operating System Critical Section in Operating System Device Management in Operating System Linux Scheduler in Operating System Long Term Scheduler in Operating System Mutex in Operating System Operating System Failure Peterson's Solution in Operating System Privileged and Non-Privileged Instructions in Operating System Swapping in Operating System Types of Operating System Zombie and Orphan Process in Operating System 62-bit operating system Advantages and Disadvantages of Batch Operating System Boot Block and Bad Block in Operating System Contiguous and Non - Contiguous Memory Allocation in Operating System Control and Distribution Systems in Operations Management Control Program in Operating System Convergent Technologies in Operating System Convoy Effect in Operating System Copy Operating Systems to SSD Core Components of Operating System Core of UNIX Operating System Correct Value to return to the Operating System Corrupted Operating System Cos is Smart Card Operating System Cosmos Operating Systems Examples Generation of Operating System Hardware Solution in Operating System Process Control Block in Operating System Function of Kernel in Operating System Operating System Layers History of Debian Operating Systems Branches and Architecture of Debian Operating Systems Features and Packages of Debian Operating Systems Installation of Operating System on a New PC Organizational Structure and Development in Debian Operating Systems User Interface in Operating System Types Of Memory in OS Operating System in Nokia Multilevel Paging in OS Memory Mapping Techniques in OS Memory Layout of a Process in Operating System Hardware Protection in Operating System Functions of File Management in Operating System Core of Linux Operating System Cache Replacement Policy in Operating System Cache Line and Cache Size in Operating System What is Memory Mapping? Difference Between Network Operating System And Distributed Operating System What is the difference between a Hard link and a Soft Link? Principles of Preemptive Scheduling Process Scheduling Algorithms What is NOS? What is the Interrupt I/O Process? What is Time Sharing OS What is process termination? What is Time-Sharing Operating System

Control Program in Operating System

A control program, also known as a supervisor or a kernel, is a crucial component of an operating system that manages and controls the system's resources and operations.

It is responsible for managing the allocation and deallocation of system resources, such as memory, input/output devices, and CPU time, to different programs or processes.

The control program interacts with the hardware of the computer system and provides a layer of abstraction that shields the application software from the complexities of the underlying hardware. It also provides a secure environment by enforcing access control and preventing unauthorized access to system resources.

In addition, the control program provides various system services, such as process management, file management, network management, and device management. It ensures that each program or process gets a fair share of the system resources and that the system runs smoothly without any conflicts or bottlenecks.

Overall, the control program plays a critical role in the functioning of an operating system, and without it, the system cannot function correctly or efficiently.

The control program is the most important component of an operating system, as it provides a layer of abstraction between the hardware and software. It allows multiple applications or processes to run concurrently, without interfering with each other or the underlying hardware.

The control program typically resides in the kernel of the operating system and is responsible for managing the execution of system programs, device drivers, and user applications. It provides system calls that allow applications to request services from the operating system, such as file operations, memory management, and process management.

The control program also provides a mechanism for managing system interrupts, which are signals sent to the CPU by hardware devices, such as keyboards, mice, and network adapters. Interrupts must be handled quickly and efficiently to avoid system crashes or data loss. The control program schedules interrupts and ensures that they are handled in a timely and orderly fashion.

In addition to managing system resources, the control program is also responsible for enforcing security policies, such as access control and authentication. It ensures that only authorized users or processes can access system resources, and that system data and configurations are protected from unauthorized access or modification.

Overall, the control program is a complex piece of software that is critical to the functioning of an operating system. It must be designed to be efficient, reliable, and secure, while also providing the necessary functionality to support a wide range of applications and devices.

The control program is responsible for managing the system's resources, such as CPU, memory, input/output devices, and disk space. It allocates these resources to the different applications or processes running on the system, ensuring that each one gets the resources it needs to run efficiently.

One of the most important functions of the control program is process management. The control program is responsible for creating, managing, and terminating processes. It schedules processes to run on the CPU, allocates memory for their use, and provides interposes communication mechanisms, so that processes can communicate with each other.

The control program also manages the file system, which is used to store and retrieve data on the system's disks. It provides a hierarchical structure for organizing files and directories, and ensures that users and processes have the appropriate permissions to access and modify files.

Another important function of the control program is device management. It provides drivers for different hardware devices, such as printers, scanners, and network adapters, and ensures that these devices are properly configured and accessible to the system's applications and processes.

The control program also provides a secure environment for running applications and processes. It enforces access control policies, such as user authentication and authorization, and ensures that processes and data are protected from malicious attacks.

It allocates these resources to the different applications or processes running on the system, ensuring that each one gets the resources it needs to run efficiently. one of the most important functions of the control program is process management. In summary, the control program is a critical component of an operating system that manages the system's resources, provides services to applications and processes, and ensures a secure and efficient computing environment.