Next, we attach the single board containing the entire high-definition video electronics and the entire lightweight switching-type power supply.

接下来，我们把包含高清显示电路和轻量级开关式电源的单板安装上。

So, starting in this garage in April of 1976, the two boys, with the help of some friends, got to work on the Apple I, a single circuit board with no included keyboard or monitor.

因此，从 1976 年 4 月开始，这两个男孩在一些朋友的帮助下开始研究 Apple I， 这是一块没有键盘或显示器的单电路板。