| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an information processing system capable of preventing an ill-intended third person from breaking thereto through a public line from the outside to alter the information stored in a storage device or look furtively at a mailbox. SOLUTION: This information processing system comprises a writable disc 1, a hard disc drive part for driving the disc, a first head 2 having security function for writing/reading data to the disc, a first head drive part 4, a first head control circuit 6, a first input and output channel 8 connected to the first head control circuit, a second head 3 for writing/reading data to the disc, a second head drive part 5, a second head control circuit 7, a second input and output channel 9 connected to the second head control circuit, a first computer 10 connected to the first input and output channel, and a second computer 11 connected to the second input and output channel. The first head and the second head are independently driven, and the first computer is connected to an external network.</p> |
