I even wrote Jenny and told her all about it.

VOA: standard.other

So the fact that I'm erasing it does not mean that the computer erased that memory or over wrote those values with all zeros.

事实上，我清除它的意思,不是说计算机把内存清除,或者用0覆盖这些值。

哈佛公开课 - 计算机科学课程节选