Answer:
It is a portable version of the computer's internal hard drive.
Step-by-step explanation:
Both internal and external hard drives provides storage space for contents on a computer and laptops. Media files, documents and other related files can be stored on an hard drive. Hard drives could be of different capacity. The difference between an internal and external hard drive, lies in the fact that internal hard drives are located inside a computer. An external hard drive on the other hand aren't located inside a computer and provides a portable external storage option which is safe, convenient and easy to use.