不管我们的电脑硬件是全新的还是旧一点的，为了避免损坏它，小心谨慎一点是没有坏处的。考虑到这一点，磁铁会损坏或擦拭硬盘吗？今天的超级用户问答帖子回答了一位忧心忡忡的读者的问题。

今天的问答环节是由SuperUser提供的，SuperUser是Stack Exchange的一个分支，是一个由社区驱动的问答网站分组。

照片由约翰·基奥（Flickr）提供。

问题

超级用户读者Rajesh Nielmbaram想知道磁铁是否会损坏或擦拭笔记本电脑的硬盘：

Suppose my younger brother is playing with magnets near my Dell laptop. Can a magnet wipe data from the hard-drive or otherwise irreversibly damage it?

磁铁会损坏或擦拭笔记本电脑的硬盘吗？

答案

超级用户贡献者Josh R为我们提供了答案：

While you can damage hard-drives with magnets, it takes a very, very powerful magnet to do any damage. As this article explains, any magnet that your brother may be playing with will not be large enough to do any damage:

Article Quote: This myth was popularized by movies where hackers or criminals would quickly erase the contents of their hard disk drives with a few sweeps of a powerful magnet. Unfortunately, it is almost impossible to do it with regular magnets, no matter how big they are.

Every hard disk drive actually contains two powerful neodymium-iron-boron magnets that control the movements of the read/write heads. Yet the data on the platters remain unaffected. It will take a very, very powerful magnet to affect the data inside the hard disk drive.

您还可以阅读超级用户问答文章，了解易受磁铁影响的各种计算机组件：

哪些计算机组件目前易受磁铁的影响？

有什么要补充的解释吗？在评论中发出声音。想从其他精通技术的Stack Exchange用户那里了解更多答案吗？在这里查看完整的讨论主题。