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Avoid or minimize text input

Traditional wisdom [12] (pp. $ 121$-$ 128$) makes this recommendation to minimize user switching between a mouse and keyboard. This is even more important from the energy point of view for handheld computers since text input is much slower for them. For example, if the range of inputs is known beforehand, a list can be supplied to ask users to choose, instead of type in, text.

Lin Zhong 2003-10-13