N-COUNT 个人数字助理，掌上电脑（缩略形式为 PDA） A personal digital assistant is a hand-held computer, used mainly for storing and accessing personal information such as addresses, telephone numbers, and memos. The abbreviation PDA is also used. 个人数字助理，掌上电脑（缩略形式为 PDA）
...devices such as mobile phones and personal digital assistants