A device connected to a computer to provide communication (as input and output) or auxilaray functions (as additional storage)
- Merriam Webster Dictionary
Sure! The noun form of "peripheral" is "periphery". To get the noun form of an adjective like "peripheral," you often need to change the ending of the word. In this case, you remove the "-al" ending and replace it with "-y" to form the noun "periphery." This noun refers to the outer edges or boundaries of something.