noun
Computing term for memory that can be read but not normally written to.
このデータは読み取り専用メモリに保存されています。
This data is stored in read-only memory.
RAM is read-write memory, while 読み取り専用メモリ is read-only.
Compound of 読み取り (reading) + 専用 (exclusive use) + メモリ (memory), a direct translation of the English term 'read-only memory'.