Answer:
The portable devices are:
External Hard Drive
Flash Drive
CD and DVD
Step-by-step explanation:
Portable devices are those devices that can be moved with ease from one place to another.
Let us look at the devices one by one
Internal Hard Drive
As internal hard drive is fixed inside the system unit of the computer it cannot be moved easily. So internal hard drive is not portable.
External hard drive, Flash drive, CD and DVD are portable as they are not fixed and are compact in size so they can be moved easily.
Hence,
The portable devices are:
External Hard Drive
Flash Drive
CD and DVD