What are the examples of fixed storage devices?

Examples of fixed storage devices include hard disk drives (HDDs), solid-state drives (SSDs), and optical drives like DVD and Blu-ray drives. These devices are typically installed inside a computer or server and are not designed to be easily removed or replaced by the user. They provide permanent storage for the operating system, applications, and user data. Additionally, network-attached storage (NAS) devices can also serve as fixed storage solutions within a networked environment.