noun
storage unit; memory unit
Technical term for a hardware component that stores data, used in computing and electronics contexts.
このコンピューターの記憶部は512ギガバイトです。
This computer's storage unit is 512 gigabytes.
記憶部の故障でデータが失われた。
Data was lost due to a failure of the memory unit.
ストレージ is a loanword for storage, often used for external or mass storage, whereas 記憶部 can refer to internal memory units.
Compound of 記憶 (memory) and 部 (section/unit), likely a calque from English 'memory unit' or 'storage unit'.