Computer memory
I think it could be either:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">computer memory</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ram that I've seen before include "Computers need it to operate" , "Temporary computer memory, initially" , "Thrust" , "what comes after fish" , "barge" .)
(Other definitions for rom that I've seen before include "Gypsy man" , "Read-only memory" , "Computer memory to read only, in short" .)