Command Line interaction on a teletype machine looks something like this.

电传打字机上的命令行交互看起来像这样。

Instead, early computers adapted a special type of typewriter that was used for telegraphs, called a teletype machine.

相反，早期的计算机采用了一种用于电报的特殊类型的打字机，称为电传打字机。

These virtual teletype or glass teletype machines became known as terminals.

这些虚拟电传打字机或玻璃电传打字机被称为终端。

Electromechanical teletype machines were the primary computing interface for most users up until around the 1970s.

直到 1970 年代左右，机电电传打字机一直是大多数用户的主要计算接口。

You can see a cabinet-sized computer on the left, an electromechanical teletype machine in the middle, and around screen on the right.

左边是柜式电脑，中间是机电电传打字机，右边是环绕屏幕。

Since these teletype machines already had an electronic interface, they were easily adapted for computer use, and teletype computer interfaces were common in the 1960s and 70s.

由于这些电传打字机已经有了电子接口，它们很容易适应计算机使用，电传打字机接口在 1960 年代和 70 年代很普遍。

As I mentioned last episode, by as late as 1971, it was estimated there were around 70,000 electro-mechanical teletype machines and 70,000 terminals in use, in the United States.

正如我在上一集中提到的，直到 1971 年，据估计美国大约有 70,000 台机电电传打字机和 70,000 台终端在使用。

By 1971, it was estimated, in the United States, there was something on the order of 70,000 electro-mechanical teletype machines and 70,000 screen-based terminals in use.

据估计，到 1971 年，美国大约有 70,000 台机电电传打字机和 70,000 台屏幕终端在使用。

It didn't make sense to have a teletype machine print this on paper over and over and over again -- that'd waste a lot of paper, and it was slow.

让电传打字机一遍又一遍地在纸上打印这个是没有意义的——那会浪费很多纸，而且速度很慢。

Pressing a letter on one teletype keyboard would cause a signal to be sent, over telegraph wires, to a teletype machine on the other end, which would then electromechanically type that letter.

在一个电传打字机键盘上按下一个字母会导致信号通过电报线发送到另一端的电传打字机，然后电传打字机将以机电方式打出该字母。

However, mass production of televisions for the consumer market, and general improvements in processors and memory, meant that by 1970, it was economically viable to replace electromechanical teletype machines with screen-based equivalents.

然而，面向消费市场的电视机的大规模生产，以及处理器和内存的普遍改进，意味着到 1970 年，用基于屏幕的等效设备取代机电电传打字机在经济上是可行的。