Which of the following is NOT a common use of Linux?

The choice of car gaming systems as not being a common use of Linux is accurate because, while Linux is widely utilized in various domains such as servers, embedded systems, and even some automotive applications, car gaming systems specifically tend to run on specialized operating systems designed for real-time performance and user experience, often not Linux-based. In contrast, the other options represent environments where Linux is frequently implemented due to its stability, security, and versatility.

Websites commonly utilize Linux servers to host content, given that many of the most popular web servers, like Apache and Nginx, run on Linux. Traffic light controllers can leverage Linux in their embedded systems for reliability and adaptability in managing real-time traffic data. Point of Sale (POS) systems also benefit from Linux’s robustness and security features, allowing vendors to manage transactions efficiently.

While Linux can be found in various aspects of automotive technology, such as car infotainment systems, it is less typical for dedicated gaming systems within vehicles, which are often proprietary or based on specific designs tailored to gaming performance.