A Thumb Drive or also commonly known as USB Drive, Flash Drive or Pen Drive is a USB plug and play data storage computer device used to store information such as document files, images and videos. It is an affordable gadget that is very mobile due to its small size (most weighs less than 30gms and a size less than 6cm x 3cm) and commonly used to share data among computers and other electronic devices that supports the Universal Serial Bus (USB) interface. Unless specifically set otherwise, thumb drives are typically rewritable, some up to thousands of write & erase cycles. It has slowly superseded other older-technology storage devices such as the floppy disks and CD-ROMs for the storage and backing up and transfer of computer files.
Click on the link below to learn more about the evolution and history of the pen drive:-