Flash memory is a type of non-volatile storage that retains data even when the power is turned off. It is widely used in devices such as USB drives, memory cards, and solid-state drives (SSDs) due to its speed and durability. Unlike traditional hard drives, flash memory has no moving parts, making it more resistant to physical shock. This technology works by storing data in memory cells made from floating-gate transistors. Flash memory is essential for modern computing and mobile devices, providing a reliable way to store and access information quickly. Its compact size and efficiency have made it a popular choice for both consumer and enterprise applications.