| 摘要 |
A computer keyboard system provides for fast entry of all numeric data, yet with only a small number of keys, such as the minimum number of twelve, is able to make hundreds of computer functions available for access from the keyboard. Typically a sixteen key keyboard will make available 266 different functions from a modern computer chip, surprisingly without sacrifice of more complex programming procedures and with significant advantage in providing finger room for error free operation of pocket-size computers, for example. A charted catalog of functions and corresponding keystroke selections is graphically displayed adjacent the keyboard keys so that reference to an instruction manual is minimized. Also by appropriate abbreviated notation a more diverse selection of functions is available to the keyboard as designated functions. This simplification of keyboards to be able to provide access to the many built-in programs, subroutines and functions available on modern day computer chips is made feasible by operating a live keyboard in a data input mode and shifting the mode by an execute key to a function selection mode requiring a sequence of two (or more) keystrokes. Thereby for X keys on a keyboard Xn functions become accessible where n is the number of keystrokes in the function selection sequence.
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