A Network-Attached Storage (NAS) is a file-level computer data storage server connected to a computer network, providing data access to a heterogeneous group of clients. It is a dedicated file storage that enables multiple users and heterogeneous client devices to retrieve data from centralized disk capacity. NAS devices typically contain a processor and operating system, allowing them to run applications and provide the intelligence needed for files to be easily shared by authorized people. They are often used to store and share data for multiple computers, which can be accessed remotely. NAS is popular for its ease of access, high capacity, and low cost, and it is commonly used for storing unstructured data such as audio, video, websites, text files, and documents. It is also suitable for tasks such as archiving, backup, and video streaming. NAS devices are often equipped with special hard drives that are designed for continuous operation and have longer lives compared to standard drives. They can be configured for different purposes, such as redundant array of independent drives (RAID), which provides faster read and write speeds and protection from data loss. NAS is widely used in both home and enterprise environments for its storage, accessibility, and data sharing capabilities