In the decimal system, * * * has ten numbers: 0-9. In the representation of a number, this number plays different roles in different positions, such as:
The number 2222. The most effective 2 means 2000, which is 2* 1000.
The second 2 means 200, which is 2* 100, and so on. The next two 2s are 20 (2 * 10) and 2 (2 * 1) respectively.
Then, this 1000, 100, 10, 1 is your right, which can be understood as your proportion.
So how did this 1000, 100, 10, 1 come from?
1000= 10 to the third power.
100= 10 quadratic
10= 10/power.
1= 10 to the 0 th power
In the m-th power of n, n is the number of digits of a system (10 in decimal) and m is a number (the lowest digit is 0).
This extends to binary.
1 1 1 1
In this number,
The highest order of 1 = the third power of 8 of1* 2.
Secondly, 1= 1*2 squared 4.
Or 1= 1*2 1 to the second power.
Finally 1= 1*2 to the power of 0.
The weight of each bit in the binary system from low to high is 1, 2, 4, 8, 16, 32, 64. ...
1 1 1 1=8+4+2+ 1= 15