Casio launched the first hand held computer in 1983 with its Casio PF-3000. The product was a plain digital diary. Psion of United Kingdom developed the first pocket computer in 1984. Called the Psion Organiser I, it consisted of a flat-file data base, calculator and clock. There was no operating system. These products opened up a new range of hand held computers that came to be called Personal Digital Assistants, palm pilots and palmtops. These products sent waves of excitement amongst consumers. The first to join by launching their own handheld computers were such companies as Apple and Palm Computing. Palm Pilot that became a popular PDA was launched at the end of 1990s. The first mobile phone to be launched with the PDA functionality was in 1996 by Nokia. This PDA, called 9000 Communicator, topped the sales chart globally. Soon smartphones, a new class of phones, made its way into the market with products such as Nokia N-Series, the RIM Blackberry and Apple iPhone.

The electronic devices have been rapidly displaced by a wide range of sleek and smarter portable gadgets. What had earlier occupied an envious place on the table has all been miniaturized into something that easily fits your palm. Earlier, the table was cluttered with a variety of devices for a variety of functions including audio, video telephony, Internet and many more. Most of these were too bulky to carry around. Technological advancement and technological convergence have rapidly cleared up the table combining the functionality of these devices into one so small that they can be held in your hand. These diverse portable devices, portable audio player, Ultra Mobile PC, portable media player, netbooks, smartphone and portable digital assistant combined a variety of different functions.

PDAs in the market come in different models and features. These include Pharos 535e Traveler, Palm Z22, HP iPAQ 111 Classic Handheld, PalmOne M515 Color Handheld, Palm Tungsten E2 Handheld, Palm TX Handheld, Nokia N810 Portable Internet Tablet and many more. You can know more by looking into Palm M515 review in the Internet for instance to get details of PalmOne M515.

The PDAs perform numerous functions and its functionality expanded with wireless Internet access or WiFi. Now you can conveniently download check E-mail, music and video, carry out web based transactions such as online purchase and mobile banking and many more. These portable devices can equally be used for entertainment, learning, work and play.

Personal Digital Assistant (PDA) gadgets are essential to business owners, government and all other areas of the society. These tools assist them in carrying out their various operations.

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