While FPGA:s are often used for implementing CPU:s, that's really not the best use of an FPGA in my oppinion. Of course, very usefull when prototyping a CPU, bu

While FPGA:s are often used for implementing CPU:s, that's really not the best use of an FPGA in my oppinion. Of course, very usefull when prototyping a CPU, but if you only want a CPU... you can just buy one. I think a more interesting use is for hardware that you can't buy. Like the balls in this project: https://en.wikipedia.org/wiki/IceCube_Neutrino_Observatory https://en.wikipedia.org/wiki/IceCube_Neutrino_Observatory Those balls contains frequency analyzers implemented on FPGA:s, essentially doing Fourier transforms using lookup table maths. This means they can do transforms much, much faster than in software.