Personal Digital Assistant (PDA) was introduced as a handy equipment for business people to synchronize with their parent computer at any time when they are out from their office.  Initially they were put to use as schedulers for meetings, memorizing the important data like telephone nos. addresses etc., communicating with the office and clients and such other smaller jobs.

But today the technology growth is spell-bound where you can transform your PDA into an Encyclopedia of data for referencing.  Normally people need referencing for information on anything they have a doubt and need clarification.  Browsing the Internet for seeking info is done by millions of people worldwide everyday.  The world has shrunk into a small village where a person residing at the other end has become your neighbor next door and one can peep into the current events taking place anywhere in the world instantly.
Smelling the vast potential for reference needs by millions of people, hundreds of software solutions have been made available by manufacturers and these software can be downloaded into your PDA.  A glance of the titles of software available for PDA use is just amazing and here are a few:

“Pocket Guitar Ref.2007; Prayer A Day; Leonard Maltin 2008 Movie Guide; Quote of the Day; Handy C Reference; News Raider; Electro; CIA WorldRankings 2006; Best Selling World Almanac 2008; CIA World Fact Book; German Area Codes; Anthony Dias Blue’s Pocket Guide to Wine; U.K. Area codes; North America Area Zip codes; Star Trek Episode Guide; Collins Essential English Dictionary; Merriam Webster Unabridged Dictionary; French Sound Module (Gold) for SlovoEd Dictionaries; Britannica Concise Encyclopedia 2008; Spanish-English/English-Spanish Dictionary;  Illustrated Religion Collection for Bible, Quran and Marmonism”  and the list goes on and on endlessly.

So for referencing purposes there is a software for every one – Medical references, language references, news references, current affairs references, music learning, instrument learning, country codes and area codes references – anything and everything made into a concise software solution to be entered and gone through by the touch of the interface. Really you can refer for anything under the sky through your PDA by downloading the desired software.