PDA stands for Personal Digital Assistant, a handheld device (small and light enough to be operated while it is held in the hands) that is typically used as a personal organizer. It has evolved into a more complicated computer-like gadget capable of performing a multiplicity of functions, such as serving as wireless communicators for sending and receiving data, faxes, and electronic-mail messages. The PDA concept was first introduced by Apple's MessagePad in 1993, and was later revolutionized by the PalmPilot in 1996, created by Palm, Inc. The overall market for PDAs has now grown by 20.7% in the third quarter of 2005, compared to the third quarter of 2004.
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