ＲＯＭ

noun

read-only memory; ROM

Computing term for non-volatile memory that can be read but not normally written to.

• ゲームのデータはＲＯＭに保ほ存ぞんされている。

  The game data is stored in ROM.

noun

lurker; read-only member

Internet slang for someone who reads posts but rarely or never contributes. Abbreviation of 'read-only member'.

• 彼かれは掲けい示じ板ばんではずっとＲＯＭで、一いち度ども書かき込こんだことがない。

  He's always been a lurker on the forum and has never posted even once.