Operating system
Operating system (OS) is a type of software that manages computer hardware and software resources and provides various services for computer programs. The operating system is an essential component of the system software in a computer system.
History
The concept of an operating system was first introduced in the 1950s with the development of the earliest mainframe computers. Early operating systems were very different from the sophisticated, multi-tasking systems we use today. They were simple programs designed to manage and control hardware resources, such as memory, I/O devices, and storage devices.
Functions
The primary functions of an operating system include managing the computer's resources, such as the central processing unit, memory, disk drives, and printers, providing an interface for users to interact with the system, and running applications.
Process Management
The operating system manages processes in a system. This includes the creation, scheduling, termination, and synchronization of processes.
Memory Management
The operating system is responsible for managing the computer's memory, including the RAM and the hard disk drive.
File System Management
The operating system manages files on the computer, including creating, deleting, moving, and copying files.
Device Management
The operating system manages the interaction between the user and the hardware devices of the computer.
Types of Operating Systems
There are several types of operating systems, including batch, time-sharing, multiprocessing, real-time, network, distributed, and mobile operating systems.
Examples of Operating Systems
Examples of popular operating systems include Microsoft Windows, macOS, Linux, and Unix. Mobile devices typically run operating systems like Android or iOS.
See Also
IBM System/360 Model 50 Console
MS-DOS Screenshot
System 1 File Edit
Kernel Layout
Virtual Memory
Dolphin File Manager
Layers of a Linux System
Security Descriptor for a File on Windows
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