the first "pen" or "flash" drive was made in 1987.
the creator of the usb flash drive is Dov Moran
Trek in 1998.
IBM and Trek Technology
a flash drive or pen drive, or possibly a USB key
The USB Flash Drive was introduced in 1996 and invented by Dov Moran while he was working for M-Systems.
A USB flash memory drive is a removable hardware device
usb drive
Trek Technology and IBM began selling the first USB flash drives commercially in 2000.
Go on My Computer.. And its shown.
Flash Drive USB - 2014 was released on: USA: 18 May 2014
Trek Technology
Yes, USB key and flash are just different words for it