An old US admiral explains what a Nanosecond is

In our computerized age, the nanosecond is quite an important increment of time. One billionth of a second. But what does it mean? What exactly is a nanosecond, how can you wrap your mind around the concept?

Well, this is where the late Rear Admiral Grace Murray Hopper (December 9, 1906 – January 1, 1992) comes in. She was an American computer scientist and United States Navy officer. Vice Admiral Murray Hopper was also one of the first programmers of the Harvard Mark I computer, developed the first compiler for a computer programming language and helped develop COBOL.

Fun fact: According to annecdote and oral history, the term debugging (from actually removing an insect from the inside of one of those ancient early computers) was termed by her.

But I digress. Here is the Vice Admiral’s explanation of what a nanosecond is: