18 Define operating system and give two examples.

operating system (OS) is a software that manages computer hardware and software resources and provides common services for computer programs. It acts as an intermediary between users and the computer hardware. The operating system controls and coordinates the activities and sharing of resources of the computer. It also provides a way for users to interact with the computer.<br /><br />Examples of operating systems include:<br /><br />1. Microsoft Windows: This is a widely used operating system developed by Microsoft. It is known for its user-friendly interface and is commonly used in personal computers and laptops.<br /><br />2. macOS: This is an operating system developed by Apple Inc. for its line of Mac computers. It is known for its sleek design and user-friendly interface. It is also known for its security features and integration with other Apple devices.