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Flash memory is a type of non-volatile, solid-state storage that can be electrically erased and reprogrammed. This means it retains data even when power is turned off and is commonly used in devices like USB drives, solid-state drives (SSDs), smartphones, and digital cameras. Its solid-state nature makes it faster and more durable than traditional hard drives, which have moving parts.

Key characteristics

Non-volatile: It maintains stored data without a continuous power source.

Solid-state: It uses memory chips with no moving parts, making it fast and resistant to physical shock.

Electrically reprogrammable: Data can be erased and written over electronically, allowing for updates and modifications.

High-density storage: Technologies like NAND flash allow for a high amount of data to be stored in a small physical space.