Answer:
input, output, processing, and storage.
Step-by-step explanation:
input - the transfer of information into the system. ( ex: what you type on a keyboard. )
output - the presentation of information to the user ( example is the screen. What type of display is presented...?)
processing - obtaining information based on what you you searched ( What search results you get after putting in the input)
Storage - Storing or saving information into files.