# BINARY DATA REPRESENTATION Understanding Binary WHAT IS BINARY

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 0 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?

LIKE THIS PERHAPS So in this example the letter C would be 00011 in Binary

LIKE THIS PERHAPS Cat Donut Pen What are the following words in binary: 00011 00001 10100 01111 01110 10101 10100 10000 00101 01110 Create your own binary word!

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 is used to represent the characters on a keyboard, each key is assigned a number, like co-ordinates. What is the ASCII code for: % 0101 010 A 0001 100 Z 1010 101 m 1101 110 What characters are these: 1010 000 LF 1111 010 / 0110 100 F 0001 111 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. Kilo. Byte, Mega. Byte, Giga. Byte

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