A patterned series of these tiny charged berries on the disk represents a single bit of data in the binary number system used by computers.

这些在磁盘上的有序的小粒子,代表这个当代计算机中,二进制中单独的一位。

哈佛公开课 - 计算机科学课程节选

Well, if we actually want to represent something like the number 7, well in binary, not actually in decimal like this.

如果你表达,类似于7的数字，在二进制中，它和十进制可不太一样。

哈佛公开课 - 计算机科学课程节选

So just as a little sanity check, number 15 in binary would be?

再来做个测试，那么二进制中15怎样表达？

哈佛公开课 - 计算机科学课程节选