The
basic element in the formation of all digital electronics circuits. It
has one output
terminal and one or more input terminals. Its output will be High (logic
1) or
Low (logic 0) depending on the digital level(s) existing at the input terminal(s).
Application
: Logic Gates are primarily used as decision making elements in both
combinational and sequential logic circuits.
Definition of Terms :
Truth Table - a table that shows all posible input
level combinations of a circuit
and each corresponding output that will result.
Boolean Equation/Expression - an algebraic equation
that states the functional
behaviour or operation of a logic gate or combinations of gates.
Timing Diagram - a graphical illustration of how the
output of a circuit will
correspond to the input changes.
Six Basic Logic Gates