Hexadecimal

(Picture above is of the Reboot villain, Hexadecimal)
 

Hexadecimal or "Hex" for short, is a way of representing numbers. It is used in many programming codes.
Decimal is the system we usually use for numbers, this is a "base ten" system as it uses ten different numerals:

0, 1, 2, 3, 4, 5, 6, 7, 8 and 9

Similarly, hexadecimal is a base 16 system. ("hex" is Latin for six, "deci" is Latin for ten) It uses the ten numerals used by the decimal system, plus the first six letters of the alphabet.

You'll notice that the first nine numbers are identical in decimal and hex, but then instead of moving on to two digits, hex uses the six letters first to represent the decimal numbers 10 to 15.
You can quickly see the advantage of hexadecimal, it condenses the volume of data considerably. In fact ALL the 256 numbers used by Creatures are all two digit in hex.

Also in the table is the ASCII code, useful for hex editing. The green ones at the beginning are acronyms of the command triggered rather than a character. 

 

HEX  DECIMAL BINARYASCII   HEX  DECIMAL ASCIIBINARY   HEX  DECIMAL ASCII   HEX  DECIMAL ASCII   HEX  DECIMALASCII
0 0 00000000null32 50 20011001164 100 d96 150 C8 200
1 1 00000001soh33 51 30011010065 101 e97 151 C9 201
2 2 00000010stx34 52 40011010166 102 f98 152 CA 202
3 3 00000011etx35 53 50011011067 103 g99 153 CB 203
4 4 00000100eot36 54 60011011168 104 h9A 154 CC 204
5 5 00000101enq37 55 70011110069 105 i9B 155 CD 205
6 6 00000110ack38 56 8001111016A 106 j9C 156 CE 206
7 7 00000111bel39 57 9001111106B 107 k9D 157 CF 207
8 8 00001000bs3A 58 :001111116C 108 l9E 158 D0 208
9 9 00001001tab3B 59 ;6D 109 m9F 159 D1 209
A 10 00001010lf3C 60 <6E 110 nA0 160 D2 210
B 11 00001011vt3D 61 =6F 111 oA1 161 D3 211
C 12 00001100ff3E 62 >70 112 pA2 162 D4 212
D 13 00001101cr3F 63 ?71 113 qA3 163 D5 213
E 14 00001110so40 64 @0100000072 114 rA4 164 D6 214
F 15 00001111si41 65 A73 115 sA5 165 D7 215
10 16 00010000dle42 66 B74 116 tA6 166 D8 216
11 17 00010001dc143 67 C75 117 uA7 167 D9 217
12 18 00010010dc244 68 D76 118 vA8 168 DA 218
13 19 00010011dc345 69 E77 119 wA9 169 DB 219
14 20 00010100dc446 70 F78 120 xAA 170 DC 220
15 21 00010101nak47 71 G79 121 yAB 171 DD 221
16 22 00010110syn48 72 H7A 122 zAC 172 DE 222
17 23 00010111etb49 73 I7B 123 {AD 173 DF 223
18 24 00011000can4A 74 J7C 124 |AE 174 E0 224
19 25 00011001em4B 75 K7D 125 }AF 175 E1 225
1A2600011010sub4C76L7E126~B0176E2226
1B 27 00011011esc4D 77 M7F 127 delB1 177 E3 227
1C 28 00011100fs4E 78 N80 128 B2 178 E4 228
1D 29 00011101gs4F 79 O81 129 B3 179 E5 229
1E 30 00011110rs50 80 P82 130 ,B4 180 E6 230
1F 31 00011111us51 81 Q83 131 B5 181 E7 231
20 32 00100000space52 82 R84 132 B6 182 E8 232
21 33 00100001!53 83 S85 133 B7 183 E9 233
22 34 00100010"54 84 T86 134 B8 184 EA 234
23 35 00100011#55 85 U87 135 B9 185 EB 235
24 36 00100100$56 86 V88 136 BA 186 EC 236
25 37 00100101%57 87 W89 137 BB 187 ED 237
26 38 00100111&58 88 X8A 138 BC 188 EE 238
27 39 00101000'59 89 Y8B 139 BD 189 EF 239
28 40 00101001(5A 90 Z8C 140 BE 190 F0 240
29 41 00101010)5B 91 [8D 141 BF 191 F1 241
2A 42 00101011*5C 92 \8E 142 C0 192 F2 242
2B 43 00101100+5D 93 ]8F 143 C1 193 F3 243
2C 44 00101101,5E 94 ^90 144 C2 194 F4 244
2D 45 00101110-5F 95 _91 145 C3 195 F5 245
2E 46 00101111.60 96 `92 146 C4 196 F6 246
2F 47 00110000/61 97 a93 147 C5 197 F7 247
30 48 00110001062 98 b94 148 C6 198 F8 248
31 49 00110010163 99 c95 149 C7 199 F9 249
FA 250
FB 251
FC 252
FD 253
FE 254
FF 255

Here seems a good place to mention binary. As you may or may not know, a computer runs, at its most basic level on 1s and 0s.
Representing pulses of electricity in the circuitry.
Binary is a base 2 system, with only two numerals: 1 and 0.
"bi" is latin for two.

In computer lingo, a single digit in a binary number is called a bit,
eight bits make up a byte for example: 01010011
Each byte can represent the numbers from 0 all the way up to 255.

Usually we use hexadecimal to more easily manipulate code, as it can represent bytes as 2 digits instead of 8.

Hexadecimal Binary Decimal
0 0 0
1 1 1
2 10 2
3 11 3
4 100 4
5 101 5
6 110 6
7 111 7
8 1000 8
9 1001 9
A 1010 10
B 1011 11
C 1100 12
D 1101 13
E 1110 14
F 1111 15
10 10000 16
11 10001 17

  

 

 

(masks of the Reboot villain, Hexadecimal)