Final answer:
An operating system is essential system software that manages computer hardware and software resources, enabling the use of other programs like word processors and spreadsheets.
Step-by-step explanation:
An operating system is system software that manages computer hardware, software resources, and provides common services for computer programs. The primary function of an operating system is to make the computer system convenient to use and to utilize computer hardware in an efficient manner. Operating system software such as Microsoft Windows manages the computer’s resources, allowing other software, like word processors, spreadsheet programs, and database systems, to run on the computer.
For instance, data base user interface and query software like Microsoft Access, electronic mail software, office suite software including Microsoft Office, and spreadsheet software like Microsoft Excel all require an operating system to function. While there are various types of system software and applications, an operating system is fundamental for the operation of a computer.