Binary
This is a basic concept in computer science
Binary[edit]
This is one of the better videos I've seen on binary.
Binary Translation table[edit]
I find it helpful to draw this table when I must convert binary to base 10.
| 128 | 64 | 32 | 16 | 8 | 4 | 2 | 1 |
|---|---|---|---|---|---|---|---|
How to add two binary numbers[edit]
Adding binary is straight forward. Line up the numbers as you would if you were adding base-10 numbers.
Remember this:
0 + 0 = 0
0 + 1 = 1
1 + 0 = 1
1 + 1 = 10, so write a 0 and carry the 1.
1010100
0110100
Do you understand binary?[edit]
Why is this so important?[edit]
If we can represent numbers as 1 and 0, why not represent numbers as on and off? If we can represent letters as numbers (A = 65, B = 66) couldn't we also say A = 01000001 and B = 01000010?
Binary representation is the essence of how computers work.