A decoder with n input lines can activate at most how many output lines?

An encoder performs the opposite function of a:

A multiplexer (MUX) is a combinational circuit that:

The number of select lines needed to choose among 8 inputs of a multiplexer is:

A combinational circuit's output depends only on:

A tri-state buffer is useful because it can output:

A flip-flop is a sequential circuit element that stores: