1. Binary

2. Binary Number system Binary number system – also known as base 2
Two symbols: 0 and 1
Called bits
0 is off
1 is on
When arranged in sets of 8 bits – 256 values can be represented

3. What it looks like
My first name in binary is… Loganville High School in binary is…

4. With 8 bits we use these #s
How does it work?
With 8 bits we use these #s
128 – 64 – 32 – 16 – 8 – 4 – 2 – 1
Then we decide which numbers are turned on and which are turned off
0 – 0 – 0 – 0 – 1 – 0 – 1 – 0
What does that binary number =?

5. How do we create letters?
How many letters in the alphabet?
A is the ______ letter.
1 =
With letters you only need 5 bits, HOWEVER, we need to know if it is capitalized.
Since we are using 8-bits – we will always add a 010 for upper case and 011 for lower case.
A = a =

6. Capital letters Letter Binary Code A 01000001 N 01001110 B 01000010 O C P D Q E R F S G T H U I V J W K X L Y M Z

7. Lowercase letters Letter Binary Code a 01100001 n 01101110 b 01100010 c p d q e r f s g t h u i v j w k x l y m z

8. Video