External storage refers to devices that provide additional space for storing data outside of a computer's internal hard drive. Common examples include USB flash drives, external hard drives, and memory cards. These devices can be easily connected to computers or other devices, allowing users to transfer, back up, or store files securely. One of the main advantages of external storage is its portability, enabling users to carry large amounts of data conveniently. Additionally, external storage can help free up space on a computer's internal drive, improving performance and organization. It is widely used for personal, educational, and professional purposes.