An operating system has three main functions: (1) manage the computer’s resources, such as the central processing unit, memory, disk drives, and printers, (2) establish a user interface, and (3) execute and provide services for applications software.

How an operating system organizes information?

The OS allows you to organize the contents of your computer in a hierarchical structure of directories that includes files, folders, libraries, and drives. Windows Explorer helps you manage your files and folders by showing the location and contents of every drive, folder, and file on your computer.

How does the operating system coordinate software?

As the OS coordinates the activities of the processor, it uses RAM as a temporary storage area for instructions and data the processor needs. The OS is therefore responsible for coordinating the space allocations in RAM to ensure that there is enough space for the waiting instructions and data.