The term PART OF ROM refers to the components of a READ-ONLY MEMORY (ROM) chip. The crossword solutions for this term are MEMORY (6 letters), ONLY (4 letters), and READ (4 letters). MEMORY is the most important part of a ROM chip, as it stores the data that can be READ by the chip. The word ONLY refers to the fact that the data stored in a ROM chip cannot be changed or written over. Finally, the word READ indicates that the data stored in a ROM chip can ONLY be accessed and not modified.