| 摘要 |
A keyboard, for example, for engineering purposes derived from a tradition typewriter where alphanumeric keyboards for use in potable computer, control units etc., and more particularly to alphanumeric keyboards for switching the number key from the right side to the left side on the keyboard. The characteristics of the keyboard includes a numeric key pad located on the left side of the keyboard so that it can either be set for left hand touch pad control, or for depression of conventional keys on a keyboard and simultaneously set for right hand control of a mouse, including moving the mouse and clicking on one of the mouse buttons. During the time a user is working on the keyboard, it is particularly adapted to the specific use of the keypad numerical portion of the keyboard by the left hand and a mouse by the right hand and is especially useful for use by an engineer.
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