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An operating system (commonly abbreviated to either OS or O/S) is the interface between the computer hardware and the user; with the kernel which is responsible for the management and coordination of activities and the sharing of the limited resources of the computer. 1_______. As the host, one of the purposes of the operating system is to handle the details of the operation of the hardware. 2_______. Almost all computers, including handheld computers, desktop computers, supercomputers, and even video game consoles, use an operating system of some type. Some of the oldest models may however use the embedded operating system, that may be contained on a compact disk or other data storage device.
Operating systems offer a number of services to application programs and users. 3_______. By invoking these interfaces, the application can request a service from the operating system, pass parameters, and receive the results of the operation. 4_______.
The operating system acts as a host for applications that are run on the machine
This relieves application programs from having to manage these details and makes it easier to write applications
Applications access these services through application programming interfaces (APIs) or system calls
Users may also interact with the operating system with some kind of software user interface (UI) like typing commands by using command line interface (CLI) or using a graphical user interface (GUI)