| 摘要 |
PURPOSE: A keyboard device is provided to enable a user to store data as well as to input data so that it prevents a data loss caused by a storage lack in a PDA. CONSTITUTION: The device comprises a main body(2), plural keys(4) and a memory(6). The main body(2) includes a connection module on a side. The connection module includes a connector(10) for connecting the main body(2) to a portable data processing terminal(12) like a PDA. The data input via the keys(4) is input into the portable data processing terminal(12). The memory(6) includes a microprocessor(6a) and a data buffer(6b). The microprocessor(6a) processes input signals from the keys(4). The data buffer(6b) buffers the data processed by the microprocessor(6a).
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