What Is an Operating System?

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Operating systems are the software that runs behind-the-scenes on a computer, managing many hardware components, including memory as well as file systems and input and output devices like keyboards, monitors printers, modems and keyboards. It also manages access to the central processing unit or CPU.

Multitasking is a term that allows multiple programs to run simultaneously on an OS. This is possible because the OS allocates system resources, such as memory space and CPU time to a program during execution. It tracks the program’s use of these resources and ensures that the program doesn’t interfere with other programs using these same resources.

Operating systems track the location of files and their status on the computer’s disk. They create a virtual directories and store metadata, such as the date of creation or modification. Drivers let an application quickly connect to the hardware of computers. These drivers translate the proprietary language of the hardware into a standard language that an operating system can understand.

If an application has to save the file, it connects to the operating system kernel. This is due to the fact that the application cannot directly access the drive and requires drivers to communicate with it. The operating system creates a logic request, which it then transforms. Hardware is utilized in accordance with instructions.