To calculate amount needed we use the following formula:
\(2^{a} \cdot b\)
Where a - number of input bits
b - number of output bits
In this case we have:
\(2^{4} \cdot 2^{4} = 2^{8} = 256\) input bits
The number of output bits would be 8.
\(256 \cdot 8 = 2048\)
