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在计算机的五大组成部分中,存储部分占有举足轻重的地位,而在存储设备中硬盘又是重种之重。一块硬盘基本上有磁头、碟片和接口电路所组成,在组成上虽然不是很复杂,但是有关于硬盘的技术却层出不穷。磁头磁头的发展先后经历了“亚铁盐类(MONOLITHIC HEAD)磁头”、“MIG(METAL IN GAP)磁头”、“薄膜(THIN FILM HEAD)磁头”和MR(Magnetoresistive heads磁阻磁头)磁头。亚铁盐类磁头、薄膜磁头和MIG磁头属于传统的读写合一的电磁感应式磁头,但是,硬盘的读、写却是两种截然不同的操作,为此,这种二合一磁头在设计时必须要同时兼顾到读/写
In the five major components of the computer, the storage part occupies a pivotal position, and in the storage device in the hard disk is heavy weight. A hard disk is basically composed of a magnetic head, a disk and an interface circuit. Although not very complicated in composition, there are an endless stream of technologies about the hard disk. The head of a magnetic head has successively undergone “MONOLITHIC HEAD”, “METAL IN GAP”, “THIN FILM HEAD” and MR (Magnetoresistive heads) heads. Ferrous salt magnetic head, thin-film magnetic head and MIG head belong to the traditional read-write electromagnetic induction head, but the hard disk read and write are two distinct operations, for which this two-in-one head in Design must take into account both read / write