Well into the 1980s, almost all computers had a punch card reader.

进入 20 世纪 80 年代，几乎所有的电脑都有一个穿孔卡阅读器。

The processor, punch card readers, and printers were known and unchanging.

处理器、穿孔卡阅读器和打印机是众所周知的，并且没有改变。

And early home computers made for the hobbyist market used switches extensively, because most home users couldn't afford expensive peripherals like punch card readers.

早期为爱好者市场制造的家用电脑广泛使用开关，因为大多数家庭用户买不起穿孔卡阅读器等昂贵的外围设备。

By the end of the 1950s, computers had gotten so fast, they were often idle waiting for slow mechanical things, like printers and punch card readers.

到 20 世纪 50 年代末，计算机变得如此之快，以至于它们经常闲置等待慢速机械设备，例如打印机和穿孔卡阅读器。