Question

A system with memory which anticipates future values of input is called _________

(a) Non-causal System

(b) Non-anticipative System

(c) Causal System

(d) Static System

I had been asked this question in final exam.

My question is from Properties of Systems topic in chapter Signals and Systems Basics of Signals and Systems

Answer 1

Correct answer is (a) Non-causal System

For explanation I would say: A system which anticipates the future values of input is called a non-causal system. A causal depends only on the past and present values of input. Non-anticipative is another name for the causal system. A static system is memory less system.