Question

What is pen drive? (Topic: Storage Devices)

Answer 1

Pen drive is a device that has some storage inside it where anyone can store any data. These are poratable.

Hope the answer is clear !!

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Answer 2

Pen drives are portable storage devices.

They are also known as flash drives.  

These drives are very small and files from the master computer can be copied on them and can be transferred to another computer where there is no lan or wan connection.

They act as an external storage device to carry data.