磁盘在电子计算机系统中作为大容量存贮设备已得到了广泛的应用,但如何进一步提高盘面的记录密度还是当前研制工作中需要解决的重要课题,目前由于盘片的材料及加工、涂层工艺的限制,能够提供用作高密度记录的盘面还很难做到完美无缺,由此造成信息错误也就很难避免,这就要求磁盘装置具有出错检别和校正的功能,使之有可能改善可靠性能和提高使用效率。对此应用编码理论对需要记录在盘面上的数据序列以一定的规则产生一些校验 Disk has been widely used as a large-capacity storage device in electronic computer systems. However, how to further improve the recording density of a disk surface is an important issue that needs to be solved in current research and development. At present, due to the material and processing of the disk, the coating process , The ability to provide a disk for high-density recording is hard to be perfect, and it is hard to avoid information errors, requiring the disk device to have error detection and correction functions that make it possible to improve Reliable performance and improve efficiency. This application of coding theory of data sequences need to be recorded on the disk with some rules to produce some verification