advantage:Just use two simple symbol can much easier for our computer to remember and save.As we all know that Complex statements mean more complex logic structures and it is very inconvenient for us to use the computer.What's more important is that the development of the computer means that Simplicity and processor speed are destined to become mainstream.

How:line break and character are all have their own function.But the line break has no special meaning and character could have it's own meanings.For example:"A"would be translated into 65 in ASCII.But "\n" is on the contrary.