A nibble is equivalent to half a byte or 4 bits, encodable on one of the 6 faces of a die.
A 6-sided die can easily be built using 6 sonobe origami modules, 2 dice can be used to store 8 bits of data for the paper computer. This is an original idea from Maleza.
The 6 faces of the dice are as follow:
Here is the 16 possible values that can be expressed with the rotation of the die.
|0 sA||1 sB||2 sB||3 sC|
|4 sB||5 sC||6 sD||7 sE|
|8 sB||9 sD||A sC||B sE|
|C sC||D sE||E sE||F sF|
Each face can express a specific number of values, here are all the values that can be expressed for each side.
|sB||1, 2, 4, 8|
|sC||3, 5, A, C|
|sE||7, B, D, E|
The nibble dice cannot be used to generate random values, as some sides hold a higher number of results than others.