硬盘

Compared with the computer tutor, with the tutee the direction of control between the computer and the user is reversed.

准备演示内容可通过计算机输入，也可事先制作贮存在硬盘中，并通过桌面演示软件再次展示出来。

Our digital society has built a supernetwork of copiers out of hundreds of millions of personal faxes, library photocopiers, and desktop hard disks.

我们数字社会通过无数个人传真机、图书馆影印机、电脑硬盘组成了一个拷贝超级网络。