Chad A. Phipps

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This study compared text entry performance of two stylus-driven soft keyboards for use in hand-held computing devices: the QWERTY and the T9. Participants transcribed text presented on a computer screen into a personal digital assistant (PDA) using a stylus and one of these two keyboards. We introduced a new psychophysical technique for measuring(More)
Mobile computing devices, which are commonly known as either personal digital assistants (PDA) or personal information managers (PIM), are an emerging technology that has the potential to be very useful in specific areas of computing. One area in which mobile computing devices are gaining favor is in data collection, especially in places where larger(More)
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