PSM (Portable Storage Media) is a portable device than can carry media and can be transported physically such as a flash memory card or SD card ETC.
A USB flash drive or SD card
flash drive
The absolute best thing to get for storing and listening music is an iPod. They come in a variety of different types, storage capacities, colors and functions. They are the best product on the portable media storage device market.
It would be considered a storage device as you can give or receive information from the device.
It is portable. It provides or act as a back up
True
Optical disk
The CD and the DVD.
portable storage medium
Portable media player was created in 2002.
They're technically the same thing, although some people use different terms to describe portable storage (i.e a USB stick) and permanent storage (hard drive).
One example of a portable media player is an ipod.
Optical disc