Logic Gates & Electricity in Computers

What is used to control the flow of electricity through a computer?

• Binary codes

• Software

• Logic gates

• Hard drive

What does a computer use to represent binary data?

• Letters and numbers

• Sound waves

• High and low voltage

• Touchscreen input

What voltage level does a logic gate interpret as binary 1?

• No voltage

• Low voltage

• High voltage

• Medium voltage

What analogy is used to describe a logic gate in the reading?

• A circuit breaker

• A water tap

• A light bulb

• A switch

Why is it amazing that computers can do complex tasks using logic gates?

• Because computers can understand human language

• Because everything is built on a simple concept of high or low electricity

• Because they can store unlimited electricity

• Because they use complicated hardware

How many input values can a logic gate have in a simple example?

• One

• Two

• Three

• Unlimited

What happens when electricity enters a logic gate at a high voltage?

• It stays the same

• It is converted into 0

• It represents a 1

• It increases the current

What does a low voltage signal represent in binary form?

• 1

• 2

• 0

• It depends on the device

Why do computers use two voltage states instead of just one?

• To save energy

• To represent binary data (0 and 1)

• To make the circuits easier to design

• To prevent overheating

What is the main role of a logic gate in a computer system?

• To store files

• To connect the keyboard and screen

• To control and manipulate binary input signals

• To display images on the monitor