logic gates

Logic Gates

• The information is represented in the computer in binary form.
•  Binary information is represented using signals in two states off oron which correspond to 0 or 1, respectively.
•  The manipulation of the binary information is done using logic gates. Logic gates are the hardware electronic circuits which operate on the input signals to produce the output signals.
•  Each logic gate has a unique symbol and its operation is described using algebraic expression. For each gate, the truth table shows the output that will be outputted for the different possible combinations of the input signal. 
• The AND,OR and NOT are the basic logic gates. Some of the basic combination of gates that are widely used are—NAND, NOR, XORand XNOR.

shows the different logic gates, their symbols, their algebraic function and the truth table for each logic gate. The comments list the features of each logic gate.