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Handheld computer devices are also termed as Personal Digital Assistant or PDAs, which has become the major requirement of millions of people, throughout the world. A PDA is a handheld device, and a large number of handheld computers are based on blue tooth, wireless and many other technologies, which make them extremely adaptable and helpful. The main advantage of PDA is that it can store a large amount of data in a small box.
This tiny device has the following features: calendar, notepad, an address book and capable of transferring email and downloading other materials through computer. Generally, handheld computers are used for personal information manager (PIM) types of functions comprising maintenance of programs, keeping names and phone numbers, perform uncomplicated computations, taking notes, and, through a modem, transferring e-mail and getting information from the Web.
While purchasing a handheld computer or PDA, you have to keep some important things in mind. The vital things include memory, processor speed, display size and resolution, operating system, card slots, accessories etc. There are mainly two operating systems for PDA: Palm OS or Microsoft Pocket PC.
There are several models and makers of PDA in the market. Always choose the right model that fulfills your needs. Here are some examples of best PDA models: Garmin iQue 3600, Palm Tungsten E, Toshiba Pocket PC e750, Toshiba Pocket PC e335, Sharp Zaurus SL-5600, HP iPaq H5550, Palm n125 and Dell Axim X5.
HP iPaq H4350 works on Intel's 400MHz XScale processor and its RAM size is about 64MB. Its Wi-Fi connection permits the user to connect to the Internet. It has a transflective screen and outstanding battery life. Garmin iQue 3600 has its own GPS system and a transflexive screen. It processor size is about 200 MHz and runs on the Palm OS 5.2.1 operating system. Toshiba Pocket PC e750 has 64MB of RAM with an additional ROM of 32MB. Its processor size is 400 MHz.
Toshiba Pocket PC e335 has Intel 300MHz XScale processor with an excellent battery life. It consists of a reflective screen, which has 240x320 pixels. Palm Tungsten E has 126MHz Texas Instruments OMAP 311 ARM processor plus internal memory of 32 MB.
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