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Hard drives are data storage devices used in computers and other electronic systems. They are a type of computer peripheral, typically found internally within desktop and laptop computers, as well as in digital cameras and other portable devices. Hard drives employ rotating disks or similar technology to read and write data, offering larger storage capacities than alternative options like solid-state drives (SSDs) or flash memory. The primary function of a hard drive is to provide long-term, reliable storage for digital files, applications, and operating systems. They are essential components in modern computing, enabling users to save, access, and manage their data efficiently.