Toimintojärjestelmän

Toimintojärjestelmä, known in English as the operating system, is the fundamental software that manages computer hardware and software resources. It acts as an intermediary between the user and the computer's hardware, providing a platform for applications to run. Key functions of an operating system include process management, memory management, file system management, and device management. It allocates resources such as CPU time and memory to different programs, ensuring they can execute efficiently and without conflict. The operating system also handles input and output operations, allowing programs to interact with peripherals like keyboards, mice, and printers. Furthermore, it provides a user interface, which can be command-line based or graphical, enabling users to interact with the computer. Examples of common operating systems include Windows, macOS, Linux, Android, and iOS. Without an operating system, a computer would be unable to perform even the simplest tasks. It is the backbone of all computing operations.