About binary representation in computer architecture

Question

Hello everyone. Recently I've been learning some code representations in computer architecture......
I saw some of the code representations such as 8 4 2 1 , 2 4 2 1 , etc... Here, what are the rules for the existence of these codes? For example, can 9 8 7 6 or 2 3 4 5 can be one of the types?

Answer 1

There are 10 kinds of people: those who understand binary and those who don't.

Answer 2

Rishi believe it or not, I got this from a bathroom wall.

Answer 3

Simon Sauter (10) is in binary so it's actually meaning 2. Nice😂

Answer 4

Simon Sauter 😂😂😂