Hexadecimal(Binary) Well, I'm pretty sure most of you have heard of Hexadecimal. Basically Hexadecimal is a simpler form of substituting for binary numbers...It acts as variables in which: A = 10 B = 11 C = 12 D = 13 E = 14 F = 15 Also you need to know that in Hex unlike binary which uses octets hex uses a 4 bit arrangement.(XXXX) The Number Place Value is as follows: x x x x ^^^^ 8 4 2 1 So 1111 = 15 = F because: 8+4=12+2=14+1=15 Basically which ever place holder is turned on you add it, if it's off you don't add it so: 0011 = 3 because: 0+0+2+1=3 This is very easy to understand, if you don't understand any part please tell me.