| 摘要 |
<p>The keyboard consists of keys and a touchpad. The touchpad can be used in three modes. In one of the modes, the touchpad is used as a pointing device. In the other two modes, the touchpad is used to detect pressing of characters and symbols printed on it. The keyboard has all the functionalities of a conventional computer keyboard and it also supports the functionalities of a computer mouse. Therefore, if this keyboard is used then there is no need of a mouse. Moreover, the keyboard is more durable and faster to use than a mouse. People having certain disabilities may fitid the keyboard easier to use than a mouse.</p> |
