"We do see bits of our DNA all over in today's underwater vehicles, both manned and unmanned, because the things that we developed.

VOA: standard.2010.06.21

Well one bit, really not all that useful, two bits still not all that useful. Eight bits?

一个比特不那么有用，两个也不那么有用，八个比特呢？

哈佛公开课 - 计算机科学课程节选