Translation guide
In computing, auxiliary storage refers to non-volatile storage used to hold data and programs not currently in main memory. This guide covers how to express this concept naturally in Japanese.
The learner wants to refer to auxiliary storage as a concept in computing, such as hard disks, SSDs, or external drives.
The standard technical term for auxiliary storage in Japanese computing. It is widely understood in IT contexts.
補助記憶装置にはハードディスクやSSDが含まれます。
Auxiliary storage includes hard disks and SSDs.
Literally 'external storage device', often used interchangeably with 補助記憶装置, but can emphasize devices outside the main unit.
外部記憶装置としてUSBメモリを使っています。
I use a USB flash drive as external storage.
Means 'secondary storage device', a more academic term. Less common in everyday speech but seen in textbooks.
二次記憶装置は主記憶装置より遅いです。
Secondary storage is slower than main memory.
The learner wants to talk about a particular device like an external hard drive or USB stick.
In Japanese, it's more natural to name the specific device (e.g., 外付けハードディスク, USBメモリ) rather than using the generic term 'auxiliary storage'.
データは外付けハードディスクに保存しています。
I save data on an external hard disk.
The loanword 'storage' is commonly used in Japanese to refer to storage devices in general, especially in consumer contexts.
このパソコンはストレージが足りません。
This computer doesn't have enough storage.
The learner wants to explain what auxiliary storage does, e.g., storing data permanently.
A natural way to say 'to store data'. Use this when explaining the purpose of auxiliary storage.
補助記憶装置はデータを長期的に保存するために使われます。
Auxiliary storage is used to store data long-term.
Means 'to memorize/store' in a computing sense. Can be used but 保存する is more common for data storage.
この装置は大量の情報を記憶できます。
This device can store a large amount of information.
補助記憶装置 is the broader technical term for any non-volatile storage, including internal hard drives. 外部記憶装置 emphasizes devices that are external to the computer. In many contexts they overlap, but 補助記憶装置 is preferred in formal IT documentation.
内蔵HDDは補助記憶装置ですが、外部記憶装置とは限りません。
An internal HDD is auxiliary storage, but not necessarily external storage.
In casual conversation, using ストレージ or specific device names like SSD, HDD, USB is perfectly natural. Technical terms like 補助記憶装置 are mainly used in academic or professional IT settings.