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ASCII Conversions
ASCII is one way in which computers represent data as text/ characters. The table below shows how to convert decimal (or denary numbers) to ASCII characters.
|Decimal ASCII CODE |
|000 |001 |002 |003 |004 |
|NUL |SOH |STX |ETX |EOT |
|0 |0 |1 |0 | |
To change binary to decimal:
|128 |64 |32 |16 |8 |
|0 |0 |1 |0 | |
Instructions for Hexadecimal Conversion
Hexadecimal numbers contain sixteen possible digits –
0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F.
The second sequence would be:
10,11,12,13,14,15,16,17,18,19,1A,1B,1C,1D,1E,1F.
The third sequence would be:
20,21,22,23,24,25,26,27,28,29,2A,2B,2C,2D,2E,2F.
|4096 |256 |16 |1 | |
| | | | |= 16 |
|0 |0 |1 |0 | |
CLUE ONE
Unscramble this message by converting from denary to ASCII:
084 104 101 032 109 117 114 100 101 114 101 114 032 108 101 102 116 032 049 032 111 102 032 116 104 101 105 114 032 101 097 114 032 114 105 110 103 115 032 064 032 116 104 101 032 104 111 116 101 108
Write the message below:
CLUE TWO
Unscramble this message by converting from 7-bit binary to ASCII:
1010011 1110100 1110010 1100001 1101110 1100100 1110011 0100000 1101111 1100110 0100000 1100100 1100001 1110010 1101011 0100000 1101000 1100001 1101001 1110010 0100000 1010111 1100101 1110010 1100101 0100000 1100110 1101111 1110101 1101110 1100100
The first letter has been done for you.
| |64 |32 |16 |
|1 |2 |4 |(1*64)+(2*8)+4=84 ( T |
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Write the message below:
CLUE FIVE
Unscramble this message, which contains some hexadecimal, some binary, some octal and some denary numbers – just to make it extra tricky!
072 151 73 0100000 098 145 61 1110010 100 040 63 1101111 118 145 72 1100101 100 040 6D 1101111 115 163 74 0100000 111 146 20 104 151 73 0100000 102 141 63 1100101
Write the message below:
WHO IS THE MURDERER?
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