Logic Gates and Truth Tables

Presentation on theme: "Logic Gates and Truth Tables"— Presentation transcript:

Slide1

Logic Gates and Truth Tables

Year 8Slide2

Starter - Recap slides

complete next two slides to recapSlide3

Label the different gates

AND

OR

NOT

XORSlide4

Draw a line from the right definition to the the right logic gate

Exactly opposite to the input

OR

NOT

XOR

AND

Either input needs to be ON or both to work

Both inputs must be on to work

Either input needs to be on but

not

both to get it to workSlide5

AND Truth Table Example

A

B

C

ON

ON

Monitor ON

OFF

OFF

Monitor OFF

ON

OFF

Monitor OFF

OFF

ON

Monitor OFFSlide6

Now apply the truth tables to the light bulbs

Your TaskSlide7

AND - Truth Table

A

B

C

ON

ON

OFF

OFF

ON

OFF

OFF

ON

A

B

CSlide8

OR - Truth Table

A

B

C

ON

ON

OFF

OFF

ON

OFF

OFF

ON

A

B

CSlide9

NOT - Truth Table

A

B

ON

OFF

A

BSlide10

XOR - Truth Table

A

B

C

ON

ON

OFF

OFF

ON

OFF

OFF

ON

A

B

CSlide11

Extension

no picturesSlide12

Truth Tables 0 = OFF 1 = ON

A

B

C

A

B

C

A

B

C

A

B

0

1

1

0

A

A

A

A

B

B

B

B

C

C

C