Chapter 3 - Logic

Question 1

What are transistors

Answer 1

Tiny transistors - switches - that can either be on or off

Question 2

Transistors are combined to make what?

Answer 2

Logic gates

Question 3

Logic gates are combined to do what?

Answer 3

Execute calculations and logic comparisons

Question 4

Give the symbol for an OR GATE

Question 5

Give the symbol for an AND GATE

Question 6

Give and example for a NOT GATE

Question 7

Draw a truth table for AnB

Answer 7

A B Y
0 0 0
0 1 0
1 0 0
1 1 1

Question 8

Draw a truth table for AUB

Answer 8

A B Y
0 0 0
0 1 1
1 0 1
1 1 1

Question 9

Draw a truth table for NOT GATE A

Answer 9

A Y
0 1
1 0

Question 10

what does a not gate do?

Answer 10

flips inputs

Question 11

A condition statement with multiple boolean operators in it is called a what?

Answer 11

Compound Statement

Question 12

To work out the outputs from all the possible combinations of inputs what is used?

Answer 12

A truth table

Question 13

True is interchangeable with what?

Answer 13

1 / ON

Question 14

False is interchangeable with what?

Answer 14

0 / OFF

Question 15

A CPU contains what?

Answer 15

transistors