PDA /ˌpiː diː ˈeɪ/ noun [countable]
(personal digital assistant) a very small light computer that you can carry with you, and that you use to store information such as telephone numbers, addresses, and appointments. Some PDAs can send and receive email, and connect to the Internet.

[TahlilGaran] Dictionary of Contemporary English ▲

PDA
Personal Digital Assistant (electronic handheld information device) 
Pretty Damn Arrogant

[TahlilGaran] Acronyms and Abbreviations Dictionary ▲