noun
RAM; read-write memory
Computing term for random-access memory; the full Japanese phrase is a direct description of a device that reads and writes data. In practice, the loanword 'RAM' (ラム) is far more common in modern Japanese.
このコンピュータの読取り書込み記憶装置は8ギガバイトです。
This computer's read-write memory device is 8 gigabytes.
読取り書込み記憶装置の速度がシステム全体の性能に影響する。
The speed of the read-write memory device affects overall system performance.
Compound of 読取り (yomitori, 'reading') + 書込み (kakikomi, 'writing') + 記憶装置 (kioku sōchi, 'memory device'). A direct Japanese translation of the concept of random-access memory.