| 摘要 |
PURPOSE:To execute the highly speedy recording and reproducing and to increase an information transfer speed by inputting and outputting the information to be reproduced as a parallel signal and parallel-processing the recording and reproducing of information by the read/write head corresponding to the plural information recording disks. CONSTITUTION:When information recorded at an information recording magnetic disk 1 is reproduced, the information is read as a parallel signal to all read/ write heads 4 from an information recording magnetic disk 1 which rotates at the constant rotation frequency by a motor 2 for driving a disk. Further, the information is amplified by respective read/write amplifiers 6 and reproduced by respective read circuits 7a is outputted from a reading signal output terminal 10a as a parallel signal. When the information is recorded, the information inputted in parallel to a write signal input terminal 11a is converted to the parallel signal recorded by a writing circuit 8a, amplified at a read/write amplifier 6 and recorded in parallel to the information recording magnetic disk 1 by the read/write head 4. |
