Digital signal processing (DSP) is the mathematical manipulation of an information signal to modify or improve it in some way. It is characterized by the representation of discrete time, discrete frequency, or other discrete domain signals by a sequence of numbers or symbols and the processing of these signals.

## Integrated Electronics Analog and Digital Circuits and Systems – J. Millman, C. Halkias – 1st Edition

Nearly all major semiconductor devices are examined for internal behavior, external variables, analog and digital applications, and uses in smalland…