Introduction to Operating Systems

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What is an Operating System?

An operating system (OS) is a crucial software that acts as an intermediary between a computer's hardware and its user. It manages hardware resources, runs applications, and provides a user interface for interaction. Without an OS, a computer would be unable to function effectively.

Core Functions of an OS

The OS handles several key tasks, including process management, memory allocation, and file system organization. It ensures that applications run smoothly by coordinating CPU usage, managing memory, and providing access to peripherals like printers and storage devices.

A Brief History of Operating Systems

The evolution of operating systems began in the 1950s with basic batch-processing systems. Early OSes like GM-NAA I/O for IBM computers were limited. The 1980s saw the rise of personal computing OSes, such as MS-DOS and the first versions of Windows, paving the way for modern systems like Linux, macOS, and Windows 11.

Why Are Operating Systems Important?

Operating systems are essential because they enable seamless interaction between users and computers. They provide security, manage resources efficiently, and support multitasking, making them the backbone of modern computing technology.