What is External storage
External storage refers to data storage devices that are not permanently installed inside a computer and are used to store, transfer, or back up data. These devices connect to a computer from outside, usually through USB, Thunderbolt, or wireless interfaces.
External storage is mainly used to store files safely, expand storage capacity, and move data between devices.
Key Features of External Storage
External storage devices are non-volatile, which means they retain data even when power is turned off. They are portable, reusable, and can be connected or removed easily without opening the computer.
Common Examples of External Storage
External hard disk drives (HDDs) and external solid-state drives (SSDs) are widely used for backups and large data storage. USB flash drives or pen drives are popular for quick data transfer. Memory cards such as SD and microSD cards are commonly used in cameras and mobile devices. Optical discs like CDs, DVDs, and Blu-ray discs are also examples of external storage.
Uses of External Storage
External storage is used for data backup, file sharing, media storage, software installation, and data recovery. It plays an important role in protecting data from system failure or accidental loss.
In Simple Words (Exam-Oriented)
External storage is a secondary storage device connected externally to a computer that stores data permanently and can be easily carried or removed.
If you want, I can also provide MCQs, one-liners for exams, or a comparison between internal and external storage.