Abstract Of Operating System

A computer system can be divided roughly into four components.

Abstract of operating system. An abstract machine also called an abstract computer is a theoretical model of a computer hardware or software system used in automata theory. A more common definition is that the operating system is the one program running at all times on the computer usually called the kernel with all else being application programs. Os abstraction layers deal with presenting an abstraction of the common system functionality that is offered by any operating system by the means of providing meaningful and easy to use wrapper functions that in turn encapsulate the system functions offered by the os to which. It can manage the resource of a computer system internally.

An operating system is a program that controls the execution of application programs and acts as an interface between the user of a computer and the computer hardware. The operating system provides generic interfaces to services provided by the underlying hardware. Typical resources include the central processing unit cpu computer memory file storage inputoutput io devices and network connections. The resources are processor memory files and io devices.

The fundamental operation of the operating system os is to abstract the hardware to the programmer and user. Abstraction of computing processes is used in both the computer science and computer engineering disciplines and usually assumes a discrete time paradigm. The operating system acts as a manager of the above resources and allocates them to specific programs and users whenever necessary to perform a particular task. Operating system acts as an intermediary between a user of a computer and the computer hardware.

The hardware the operating system the application program and the users as shown in the fig 11 fig 11 abstract view of the components of a computer system. Web operating system is simply an operating system in a web browser providing various functionalities of a traditional operating system through the web browser over a cloud or a private network of computers depending on the needs. Therefore operating system is the resource manager ie. An operating system abstraction layer osal provides an application programming interface api to an abstract operating system making it easier and quicker to develop code for multiple software or hardware platforms.