2.4 Boolean Logic

Question 1

What are the 3 logic gates?

Answer 1

AND
OR
NOT

Question 2

What does the AND logic gate look like?

Answer 2

——|———)
| )
| ) ——
| )
——|———)

(2 lines parallel,a slightly squished semi circle and line in the middle of the end)

Question 3

What does the OR logic gate look like?

Answer 3

——)——)
) )
) )——
) )
——)——)

(2 lines parallel,a slightly squished POINTY semi circle and line in the middle of the end)

Question 4

What is the symbol for the AND logic gate?

Answer 4

^ (upwards facing v)

Question 5

What is the symbol for the OR logic gate?

Answer 5

v (just a v)

Question 6

What is the symbol for the NOT logic gate?

Answer 6

¬ (a l with the bottom bit at the right

Question 7

How to know what the output would be in an AND logic gate?

Answer 7

Both have to be 1 to be true (1)
Eg:0,0=0/
1,0=0
1,1=1

Question 8

How to know what the output would be in an OR logic gate?

Answer 8

There has to be Atleast one 1 for it be to true (1)
Eg:1,0=1

Question 9

How to know what the output would be in an NOT logic gate?

Answer 9

The opposite of the input
Eg:1=0

Question 10

How to know what order to draw the logic gates in (precedence)?

Answer 10

Follow bidmas ie. Brackets first

Question 11

In a 3 input truth table, Whats the order for 1s and 0s?

Answer 11

1. 4 0s and 41s
2. Alternate between 0 and 1
3. 2 0s and 2 1s

Question 12

Whats a logic circuit?

Answer 12

When u have more than 1 logic gate connected
Like the logic circuit for NOT (A AND B) OR (C AND D)

Question 13

What is a truth table?

Answer 13

Every possible input combination’s output

Question 14

What is a logic gate?

Answer 14

A series of transistors connected together to act as a “building block” for a digital circuit

Basically the diagram for à AND OR NOT