Binary Data representation Understanding Binary

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

How is that possible? 16 8 4 2 1

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

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

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?

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

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! 00011 00001 10100 00100 01111 01110 10101 10100 10000 00101 01110

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

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: 1010 000 1111 010 0110 100 0001 111 0101 010 LF 0001 100 / 1010 101 F 1101 110 q

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