Chapter 4 Logic gates and logic circuits Flashcards
Search the logic gates(OR, AND, NOT, etc.) and logic circuits on the internet to see how the look.
What is a logic proposition?
A statement that is true or false.
What is a problem statement?
An outcome that depends on one or more logic propositions?
Which are the two values that boolean variables and operators can have?
True or False
Which are the basic operators?
AND, OR, NOT
Which are the additional operators?
NAND, NOR, XOR
What is a truth table used for?
The truthtable is used to represent logic expressions.
What is a logic gate?
A Logic gate is part of a logic circuit and it operates like a boolean operator.
What are alternative circuits used for?
Alternative circuits are used for simplifying design.
What does AND do?
In AND both inputs have to be true or 1 for the output to be 1.
What does NOT do?
In NOT if the input is 1 the output will be 0. On the other hand, if the input is 0 the output will be 1. NOT can have only one input.
What does OR do?
In OR at least one input has to be true for it to have a positive output or 1.
What does NAND do?
NAND is very similar to OR, however if both inputs are 0 than the output will be 1.
What does NOR do?
NOR needs to have both inputs as 0 if the output has to be 1.
What does XOR do?
XOR is similar to OR, however it gives 0 if both inputs are 1.
