6.4 Logic Gates Flashcards
What are the six types of logic gates ?
-NOT
-AND
-OR
-XOR
-NAND
-NOR
What is the symbol for NOT ?
A bar above the letter
What is the symbol for AND ?
A dot between the letters
What is the symbol for OR ?
A plus between the letters
What is the symbol for XOR ?
A plus inside a circle between letters
What is the symbol for NAND ?
A dot between the letters covered by a bar
What is the symbol for NOR ?
A plus between the letters covered by a bar
What are adders ?
A logic circuit that can be used to add Boolean values together.
What is a half-adder ?
A logic circuit with two inputs, two outputs and two logic gates
What is a Full Adder ?
Three inputs and two outputs, enabling it to input two Boolean values and a carry bit from a previous, less significant operation.
What is an edge-triggered D-type flip-flop ?
A logic circuit which can be used as a memory unit for
storing the value of a single bit.
What are the two inputs for an edge-triggered D-type flip-flop ?
- Data
- Clock Signal
What are the outputs for an edge-triggered D-type flip-flop ?
value of the stored bit.
