1. Binary Data representation
Understanding Binary

2. What is Binary?
The Binary number system is a way to represent any number using just 2 symbols
0 and 1

3. How is that possible? 16 8 4 2 1

4. A Quick Quiz How would we represent: 23 5 31 9 11 10111 00101 11111
01001
01011

5. Binary Counting Use the cards to count up from zero.
Do you notice a pattern?
What's the largest number you can count to with 5 Bits

6. Sending messages
All the information that is sent over the internet is sent in Binary form. How can we represent all the letters of the alphabet using Binary?

7. So in this example the letter C would be 00011 in Binary
Like this perhaps
So in this example the letter C would be in Binary

8. What are the following words in binary:
Like this perhaps
What are the following words in binary:
Cat
Donut
Pen
Create your own binary word!

9. How many characters are there on a Keyboard?
Around 128!
How many Binary Bits would we need in order to represent each of the characters?
256

10. ascii
ASCII is used to represent the characters on a keyboard, each key is assigned a number, like co-ordinates. What is the ASCII code for: % A Z m
What characters are these: LF / F q

11. 8 Bits = 1 Byte
The easiest thing to do is to use 1 Byte to represent them. How many numbers can we represent using 8 Bits? A byte is a standard unit of measure in computing i.e. KiloByte, MegaByte, GigaByte