| 摘要 |
<p>PURPOSE:To prevent such trouble that the power source is left ON forgetfully after use or that the power source is turned off during use by providing a means which indicates that an information processor main body is powered ON and in use when an EL or cathode-ray tube is powered down or when a blank signal is inputted to a CRT. CONSTITUTION:A control circuit 5 stores data in a random access memory(RAM) 6 with input data from a keyboard 4. Further, the LED 4b in the shift- lock key 4a of a keyboard 4 illuminates when the shift-lock key 4a is pressed. Further, a display control circuit 7 converts the data from the RAM 6 into a display signal, which is inputted to an LCD 1 through a display inhibiting circuit 8. Therefore, transaction data are prevented from being lost by leaving the information processor main body powered ON forgetfully in its unused state or turning off the power source by a third party during the interruption of operator's work in the used state.</p> |
