PDA falls into two major categories: Hand-held computers and palm-sized computers. The major differences between the two are size, display and mode of data entry.
Hand-held computers: Compared to palm-sized computers, tend to be larger and heavier. They have larger liquid crystal displays (LCD) and use a miniature keyboard, usually in combination with touch-screen technology, for data entry.
Palm-sized computers: are smaller and lighter. They have smaller LCDs and rely on stylus/touch-screen technology and handwriting recognition programs for data entry.
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