What is the primary purpose of a computer case?

The primary purpose of a computer case is to protect and support internal components. A computer case is designed to house critical parts of a computer system, such as the motherboard, CPU, RAM, and storage devices, keeping them safe from physical damage, dust, and electromagnetic interference. It also provides structural support, ensuring that components are securely installed and that airflow is properly managed for cooling purposes.

While the other options touch on aspects relevant to computing, they do not directly relate to the primary function of a computer case. Enhancing software performance, improving hardware compatibility, and providing internet access fall outside the protective and supportive role that a case plays in the overall computer architecture.