Dell Axim PDA
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A personal digital assistant (PDA), also called a palmtop computer, is a handheld computer. Color screens as well as audio capabilities have been introduced into the newer PDAs so that they can also be used as smartphones or mobile phones, portable media players or web browsers. Many PDAs can now access the Internet, intranets or extranets using Wi-Fi, or Wireless Wide-Area Networks. Touch screen technologies too have been introduced.
 Pocket PC PDA Dell AXIM x51v – 624 Mhz WiFi Bluetooth US $34.79 |
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CASIO PF-3000 was the first PDA to be launched in 1983. PDA functionality was first introduced into mobile phone by Nokia in 1996 called 9000 Communicator which is the best selling PDA in the world. This also led to the emergence of the category of phones called smartphones such as the RIM Blackberry, Nokia N-Series and Apple iPhone. The present PDA has the touch screen, and a memory card slot for data storage. Connectivity is provided by Bluetooth, WiFi or IrDA. Those without the touch screen continue with a directional pad, softkeys and a thumb keyboard or numeric keyboard for input. The software typically includes a to-do list, appointment calendar, an address book and a note program. Web support and E-mail is available with those PDAs having web connectivity.PDAs can store information which can be accessed whenever the user wants to access them. PDA, when fitted with differential Global Positioning System (GPS) receivers, offer realtime automobile navigation. New cars are often fitted with such PDAs. Many PDAs are also enabled to display road conditions, traffic conditions, roadside mobile radar guns and dynamic routing.
The popular PDAs include Abacus PDA Watch, E-TEN, AlphaSmart, Acer N Series, Amida Simputer, Audiovox (Sprint) PPC Series, BlackBerry, Encore Simputer, HP iPAQ, Fujitsu Siemens Loox, Nokia E Series, I-mate, Motorola Rokr E6, Dell Axim X51 , SonyEricsson P-series, MotoRokr E8, and Apple Inc.'s iPhone & iPod Touch.
Business as well as government organizations use PDAs for mobile data applications. These applications include package delivery, medical treatment and record keeping in hospitals, supply chain management in warehouses, parking enforcement, route accounting, capital asset maintenance, facilities maintenance and management, ‘wireless waitress’ applications in restaurants and hospitality venues, access control and security and meter reading by utilities. Data capture devices such as RFID, Smart Card Readers and Bar Code were also built into many of these PDAs.
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