| 摘要 |
PROBLEM TO BE SOLVED: To make it impossible to confirm input information from an input position and to enhance the security of information by irregularly changing the positions of an information input and a display section on a display screen according to a generated random number. SOLUTION: To determine a display area for information which is to be effective among the information of the display 208, a random number is generated through the system process of a CPU 201. On the basis of the generated random number, the CPU 201 calculates the positions of the display area for the effective information and a display area for ineffective information and clearly shows them on the display 208. When it is judged that the display area for the effective information on the display 208 has been calculated and shown clearly on the display 208, the generation of the random number is finished. Lastly, it is judged that the user has completed the input of the information from the input device and when the input has been completed, the inputted information is displayed on the display 208. |
