PDA Personal Digital Assistant

These handheld devices are usually used as electronic diaries and address books They synchronise with other desktop applications such as Outlook or Lotus.

Once connected to a GSM mobile with a data enabled line, they become a powerful combination. Sending and receiving emails become a lot easier, browsing the Internet etc.

There are two types - the Palm, but these have relatively low resolution screens and The Pocket PC with Windows CE operating system. The iPAQ made by Compaq is a current favorite of many.