Translation guide
A handheld device that functions as a personal organizer, now largely replaced by smartphones. In Japanese, the English abbreviation PDA is most common.
Referring to the class of handheld personal organizer devices popular in the 1990s–2000s.
The English abbreviation is standard in Japanese. Use this in most contexts.
昔はPDAを使っていた。
I used to use a PDA.
Formal Japanese term. Used in technical writing or specifications.
携帯情報端末の市場は縮小した。
The market for personal digital assistants has shrunk.
Literally 'electronic notebook'. Sometimes used for early PDAs or dedicated organizer devices, but can also refer to simple electronic dictionaries or schedulers.
この電子手帳はスケジュール管理に便利だ。
This electronic organizer is handy for managing schedules.
Talking about a particular device, e.g., Palm Pilot, Pocket PC.
Japanese speakers typically use the product name (e.g., パーム, ザウルス) followed by PDA or the category term.
パームのPDAは画期的だった。
Palm's PDA was revolutionary.
シャープのザウルスは携帯情報端末の先駆けだ。
Sharp's Zaurus was a pioneer among PDAs.
Describing a smartphone's organizer functions (calendar, contacts, notes).
Use スマホ (smartphone) and refer to PDA-like functions. The term PDA is understood as a legacy concept.
今のスマホはPDAの機能をすべて含んでいる。
Today's smartphones include all the functions of a PDA.
Means 'personal information management'. Used when talking about the software/organizer aspect.
このアプリは個人情報管理に優れている。
This app excels at personal information management.
Unless you are writing a formal document or academic paper, simply say PDA (ピーディーエー). Most Japanese people familiar with the concept will understand this loanword.
直訳の「個人デジタルアシスタント」は不自然で通じません。必ずPDAか携帯情報端末を使ってください。