A procces is an executing program. It has its code, data, a certain set of resources allocated to it, and one or more threads of execution through the code. The OS manages the allocation of resources to these processes, and also provides system calls to manage these processes.

Memory must be shared between the OS and an application program. The OS must manage the allocation of memory to processes and control the memory management hardware that determines which memory locations a process may access.

Computers process information that must be transmitted, processed, or stored. File systems are an abstract organized collection of file system objects. The OS provides primitives to manipulate these objects.

Information is sent through a computer’s input and output devices. Processes access these devices using the system call interface. The OS tries to manage said devices in a manner that makes them efficiently shared among all processes requiring them. A system call is a programming interface to the services provided by the OS, typically written in C/C++.

The kernel gives one of the most fundamental level of control over all the computer’s hardware devices. The kernel is the central component of an operating system (OS).

The operating system offers an interface in between an application program and the hardware, so that an application program can connect with the hardware just by following principles and procedures configured into the operating system.

Interrupts are primary to operating systems, as they offer a reliable method for the operating system to interact with and respond to its environment.

This makes sure that a program does not conflict with memory currently being used by an additional program. Since programs time share, each program has to have independent access to memory.

Multitasking describes the operating of multiple independent computer programs on the same computer system.

The processors interact with each other via communication lines called network. The communication-network design should consider routing and connection techniques, and the troubles of opinion and safety and security.

If a computer systems has several individuals and enables the simultaneous operation of multiple processes, then the numerous processes have to be secured from each other’s activities. A computer system being safe and secure depends upon a variety of technologies working effectively.

It is everything created into an information device with which an individual might interact. The user interface is generally described as a shell and is vital if human communication is to be supported.