write read head

基本解释

The mechanical device that moves something, usually read/write head.
一种机械装置，用于移动诸如读写磁头之类的部件。
In relation to computers, the term is applied to a read/write head, to detector of sector marks in a magnetic disc system, and to electronic/sonic pulse converters of delay line memory.
在与电脑有关时，这个术语用在磁片系统中的读／写磁头、扇面标记的检测上，以及用在延迟线记忆体的电子或声波脉冲变换器上。
In relation to computers, the term is applied to a read/write head, to detector of sector marks in a magnetic disc system, and to electronic/sonic pulse converters of delay line memory.
把能量从一种形式转换成另一种形式的装置。在与计算机有关时，这个术语用在磁盘系统中的读／写磁头、扇面标记的检测上，以及用在延迟线存储器的电子或声波脉冲变换器上。

Now, if the current is sent one way through the read/write head the area is polarized in one direction.
如果当前通过读写头来发送指向一个方向的信息,这个区域的磁极指向某个方向。
哈佛公开课 - 计算机科学课程节选
So as the particles on the disk that get the current in the read/write head moving put together millions of these magnetized segments and you've got a file.
通过读写头你就可以得到每个粒子的极性,如果把这些上百万粒子的信息,汇聚要一起就够成了一个文件。
哈佛公开课 - 计算机科学课程节选
When a brief pulse of electricity is sent to the read/write head it flips on a tiny electromagnet for a fraction of a second.
当一个简单的电脉冲被送到读写头,它会短时间内出现一个小的电磁。
哈佛公开课 - 计算机科学课程节选

One challenge would involve creating a magnetic head that could hover over those dots, read their signal and write new data onto the grid.
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