Personal Digital Assistant

Personal Digital Assistants (PDAs) are handheld computers that were originally designed as personal organizers[?], but became much more versatile over the years. A basic PDA usually includes a clock, date book, address book, task list, memo pad and a simple calculator. One major advantage of using PDAs is their ability to synchronize data with desktop, notebook and desknote computers.

The term personal digital assistant was coined on 7 January 1992 by John Sculley at the Consumer Electronics Show[?] in Las Vegas, Nevada, referring to the Apple Newton.

The currently major PDA operating systems are: Linux, Palm's Palm OS, Pocket PC from Microsoft, and Symbian OS (formerly EPOC)

Some examples of PDAs:

• Apple Newton
• Casio Cassiopeia[?]
• Handspring Visor
• hp iPAQ Pocket PC (Originally Compaq iPAQ until HP merger in 2002)
• Palm Pilot
• Sharp Wizard[?] and Zaurus
• Xircom[?] REX 5000 and REX 6000

See also: personal area network, ebook, telephone, wearable computer , laptop, sub-notebook