Leaving Cert Notes

Notes and Anki Decks for the Leaving Cert

Logic Gates

Control output from inputs

They are a series of transistors to control and output

AND

AND Gate

Truth Table

A B Output
1 1 1
1 0 0
0 1 0
0 0 0

OR

OR Gate

Truth Table

A B Output
1 1 1
1 0 1
0 1 1
0 0 0

NOT

NOT Gate

Truth Table

A B Output
1 0  
0 1  

NAND

NAND Gate

Truth Table

A B Output
0 0 1
0 1 1
1 0 1
1 1 0

NOR

NOR Gate

Truth Table

A B Output
0 0 1
0 1 0
1 0 0
1 1 0