CompTIA ITF+ Practice Test

The primary purpose of an operating system is to manage computer hardware and software resources effectively. It serves as an intermediary between users and the computer hardware, allowing users to interact with the hardware components seamlessly. The operating system handles tasks such as managing memory, processing input and output, and facilitating file management, which are vital for the efficient operation of the system.

By managing the hardware resources, the operating system ensures that applications can run on the computer without direct interference from one another, thus maintaining stability and performance. Additionally, it provides a common platform for application software to interact with the underlying hardware, which is essential for running programs effectively. This role of resource management explains why the other options do not fully capture the essence of what an operating system does. While providing internet connectivity, designing user interfaces, and eliminating the need for application software are aspects that may be influenced by an operating system, they are not its primary function.