Which of the following is NOT a component of a computer network?

The identified correct answer highlights that a web browser is not considered a component of a computer network. A web browser is a software application used for accessing information on the World Wide Web. It allows users to view and interact with web pages, but it does not play a fundamental role in the underlying architecture or operation of a computer network itself.

In contrast, Wi-Fi capability, a network protocol, and a physical cable system are all crucial components of a computer network. Wi-Fi capability enables wireless communication between devices, making it possible to connect to a network without physical wires. A network protocol defines the rules and conventions for data transmission across the network, ensuring that different devices can communicate effectively. Meanwhile, a physical cable system refers to the wired infrastructure that connects devices and enables data transfer. Each of these components is essential for establishing and maintaining the network's functionality, which distinguishes them from a web browser.