1. 1 Press Ctrl-A ©G Dear 2010 – Not to be sold/Free to use Converting Bits and Bytes Stage 6 - Year 11 Applied Mathematic (Preliminary General 1)

2. 2 End of Slide Converting Bits and Bytes Whatever you do when you work You will be using computers at some point You will come across the terms Bits and Bytes. It’s unlikely you will need to do any calculations But an understanding of what it all means is useful.

3. 3 2020 21212 2323 2424 2525 2626 2727 1248163264128 End of Slide Binary Number System – Computer Talk 1 byte = 8 bits Nibble 1Nibble 2 Decimal Numbers 0 to 255 Computers talk in 1’s and 0’s called bits. Place Values

4. 4  End of Slide Converting Bits and Bytes 2020 21212 2323 2424 2525 2626 2727 1248163264128 11 1 11111  123456789 111213141516171819 212223242526272829 10 20 30 313233343536373839 40 Click on any number. [5 second display]

5. 5 2020 21212 2323 2020 21212 2323 12481248 End of Slide Converting Bytes to Hexadecimal 1 byte = 8 bits Nibble 1Nibble 2 Hexadecimal Number 0 to FF

6. 6 End of Slide Converting Bits and Bytes Hexadecimal Numbers 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 8 9 A B C D E F Dec Hex

7. 7 End of Slide Converting Bytes to Hexadecimal 10010000 Add the numbers with a 1 under them. 1248163264128 Decimal =1+ 8= 9 10010000 12481248 8 + 1 = 90 Hexadecimal =09 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 8 9 A B C D E F Dec Hex Press

8. 8 End of Slide Converting Bytes to Decimal & Hexadecimal 10110000 Add the numbers with a 1 under them. 1248163264128 Decimal =8+ 4+ 1 10110000 12481248 8 + 4 + 1 = 130 Hexadecimal =0D = 13 = D 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 8 9 A B C D E F Dec Hex Press

9. 9 End of Slide Converting Bytes to Decimal & Hexadecimal 10101100 Add the numbers with a 1 under them. 1248163264128 Decimal =32+ 16+ 4 10101100 12481248 4 + 1 = 52 + 1 = 3 Hexadecimal =35 + 1 = 55 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 8 9 A B C D E F Dec Hex Press

10. 10 End of Slide Converting Bytes to Decimal & Hexadecimal 01011101 Add the numbers with a 1 under them. 1248163264128 Decimal =128+ 32+ 16 01011101 12481248 8 + 2 = 10 8 + 2 + 1 = 11 Hexadecimal =BA + 8+ 8 = B = A + 2+ 2= 186 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 8 9 A B C D E F Dec Hex Press

11. 11 End of Slide Converting Bytes to Decimal & Hexadecimal Add the numbers with a 1 under them. 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 8 9 A B C D E F Dec Hex