noun
Technical computing term for non-volatile memory that can be read but not normally written to. Often abbreviated as ROM in both English and Japanese contexts.
このプログラムは固定記憶装置に書き込まれている。
This program is stored in read-only memory.
Compound of 固定 (fixed) + 記憶 (memory) + 装置 (device), a direct translation of the English term 'read-only memory'.