Once data has been collected by the magnet, it is sent to the digital console
as a FID. The digital console determines the frequency and intensity of
each component wave of the FID, by performing a Fourier Transform of the
data. These frequencies and intensities make up the peaks of an NMR spectrum.
The digital console then performs other manipulations of the data, such
as zero-filling and apodization. These calculations help to make the spectrum
as detailed as possible and they eliminate imperfections caused by data
loss when the FID is sent from the magnet to the digital console.