Operations on Sequences A single-input, single-output (SSO) discrete-time system operates on a sequence called the input sequence according some prescribed rules and develops another sequence, called the output sequence, with more desirable properties Discrete-time x system Input sequence Output sequence Copyright C 2001, S K Mitra19 Copyright © 2001, S. K. Mitra Operations on Sequences • A single-input, single-output (SISO) discrete-time system operates on a sequence, called the input sequence, according some prescribed rules and develops another sequence, called the output sequence, with more desirable properties x[n] y[n] Input sequence Output sequence Discrete-time system