Translation guide
The English phrase 'read-only' refers to a file, document, or data that can be viewed but not edited. In Japanese, this concept is commonly expressed in computing contexts using loanwords or native terms.
読み取り専用
read-only (file)
Describing a file, document, or storage medium that is set to prevent writing or editing.
Standard Japanese term for 'read-only', used in software interfaces and technical documentation.
このファイルは読み取り専用です。
This file is read-only.
Abbreviation for 'Read-Only Memory', used in hardware contexts. Not typically used for files.
このチップはROMです。
This chip is ROM (read-only memory).
Use 読み取り専用 for software settings and files. Use 書き込み禁止 for physical media locks. リードオンリー is fine in casual tech talk.
Loanword from English, commonly used in IT contexts, especially in spoken or casual technical settings.
そのドライブはリードオンリーに設定されています。
That drive is set to read-only.
Literally 'write prohibited', often used for storage media like SD cards or USB drives when they are locked.
SDカードが書き込み禁止になっている。
The SD card is write-protected (read-only).