Logic Gates

What is a logic gate?

• an electric circuit with one input and no outputs

• an electric circuit with one input and one output.

• an electric circuit with two inputs and an output

• an electric circuit with one input and two outputs.

An AND logic gate compares two inputs to see if they are...

• Both on

• one on and one off

• Both off

An OR gate looks for...

• two inputs to be switched on

• one input to be switched on

• no inputs to be switched on

A NOT gate work by..

• comparing two inputs

• giving the opposite output

• giving the same input

Who invented the idea of Logic Gates?

• Marie Curie

• Nichola Tesla

• Albert Einstein

• George Boole

What type of logic gate is this?

• AND

• OR

• NOT

• XAND

What type of logic gate is this?

• AND

• OR

• NOT

• XAND

What type of logic gate is this?

• AND

• OR

• NOT

• XAND

The Boolean expression for this circuit is:

output = A​ (a)   B ​ (b)   C

• OR
• AND
• NOT