What is Personal Digital Assistants (or) Handheld PC

A handheld PC is a very small computer usually weighing less than a pound that you can hold comfortably in your hand or carry in a pocket. A handheld PC is also called a Personal Digital Assistant (PDA). Most of the people use a Personal Digital Assistant to store their schedules and check their e-mail while out of the office. PDAs function as a cellular phone, Web browser, fax, and personal organizer. They also provide handwriting recognition and voice recognition technologies.

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What is Palmtop and How it Works

Palmtop is a hand sized computer. Palmtops have no keyboard but the screen serves both as an input and output device. Palmtops accept handwritten inputs using an electronic pen which can be used to write on a palmtop’s screen. It used as a mobile phone, fax and email purpose.
 
Operating Systems : Windows CE, Psion OS, Plam OS  

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