By connecting different logic gates together in various configurations, you can create more complex logic functions and circuits.
Two invaluable uses of logic circuits include:
Half / Full Adders - some that machines can perform arithmetic
Flip-flop circuits - some that machines can store data in electronics
For the examination you will need to be able to:
Draw logic gates and circuits
Complete truth tables for logic circuits
When evaluating a logic circuit you always work from left to right.
(NOT A) AND B
Here in the example the output of the NOT gate feeds in as an input into the AND gate.
Truth Table
A
B
not A
(not A) and B
0
0
1
0
0
1
1
1
1
0
0
0
1
1
0
0
Demo
(A AND B) OR C
The expression "(A AND B) OR C" represents a logical operation that involves three variables, A, B, and C, along with the AND (AND) and OR (OR) logical operators.
