Binary

Binary

To know how computers store data

To convert between 4-bit binary numbers

Welcome to our Online Lesson on Quizizz!

_{To advance to the next slide you need to click next in the bottom right.}

_{You will be asked questions throughout the lesson, make sure you read / listen to the question carefully before answering.}

Multiple Choice

What does the CPU do?

• Store information

• Process information

• Store and processes information

• Holds the computers instructions.

Multiple Choice

What am I?

The computer's main circuit board

• CPU

• RAM

• Power Supply Unit

• Motherboard

Multiple Choice

What am I?

I convert the power from the wall to the computer

• CPU

• Motherboard

• Power Supply Unit

• RAM

Multiple Choice

What am I?

I store all the information that is currently in use.

• RAM

• ROM

• Hard Drive

Multiple Choice

What am I?

I store the operating instructions.

• RAM

• ROM

• Hard Drive

Multiple Choice

What am I?

I store most of your data such as your files, pictures and videos!

• RAM

• ROM

• Hard Drive

Multiple Choice

Which of these is an input device?

• Monitor

• Keyboard

• USB Stick

Multiple Choice

Which of these is an output device?

• Monitor

• Keyboard

• USB Stick

Last lesson we learnt....

• There are 5 main parts to a computer, the CPU, RAM, Power Supply Unit, Motherboard and the hard drive.

This lesson we are going to...

• Look at how our information is stored inside a computer

• How to convert a small binary number to our maths system.

Circuits

• Circuits are usually found in light switches which are either on or off.

• A computer also uses these circuits!

• When you press a button on the keyboard such as the letter 'a' the computer knows that the letter has been typed.

• Each of these letters and numbers on the keyboard have a unique code made up from this circuits.

Binary

• Binary is the language computers understand.

• Binary only has two possible digits 0 or 1.

• These 0's and 1's come from the circuits inside the computer!

• 0 = OFF

• 1 = ON

Multiple Choice

Binary has how many digits?

• 1

• 2

• 10

Multiple Choice

Binary is made up of what?

• Just 0's

• Just 1's

• 0's and 1's

• Numbers?

Multiple Choice

What do computer's understand?

• Binary

• Circuits

• I don't know

Binary to Maths?

We can convert from binary to our maths system!

Maths!

• In maths we have the placeholders 1's, 10's, 100's and 1000's.

• The number 6203 is made up of 3 1s, 0 10s, 2 100s and 6 1000s.

Binary and Maths!

• As binary only has two digits we use the placeholders 1, 2, 4 and 8 instead.

• The binary number 0001 would be the number 1 in our maths system this is because the number 1 is in the placeholder that says 1.

Binary to Maths!

• The binary number 0010 becomes the number 2 this is because the 1 is in the placeholder 2.

Binary to Maths!

• The binary number 0011 becomes the number 3 this is because the placeholders 1 and 2 contain a 1, so I add these placeholders together to make 3. (1+2=3)

Multiple Choice

What is binary 0001 in our maths?

• 0

• 1

• 2

• 8

Multiple Choice

What is binary 0011 in our maths?

• 1

• 2

• 3

• 12

Multiple Choice

What is binary 0100 in our maths?

• 1

• 2

• 4

• 8

Multiple Choice

What is binary 0101 in our maths?

• 3

• 4

• 5

Multiple Choice

What is binary 0110 in our maths?

• 3

• 4

• 5

• 6

Multiple Choice

What is binary 0111 in our maths?

• 5

• 6

• 7

• 14

Multiple Choice

What is binary 1 000 in our maths?

• 1

• 2

• 4

• 7

• 8

Multiple Choice

What is binary 1 0 1 1 in our maths?

• 4

• 8

• 10

• 11

What about maths to binary?

• If I know the maths number but want to work out the binary number all I need to do is work out which of the 4 numbers add together to make our number from 1, 2, 4 and 8.

Example

For example, I want the number 10, I know the numbers 8 and 2 make the number 10 so I need the placeholders 8 and 2, so I pop 1's in these place holders and 0's in the placeholders that aren't needed to make the binary number 1 0 1 0.

Completed Example

The number 10 in binary is 1 0 1 0 I know this is correct because 8 plus 2 equals 10 (remember we add the placeholders with a 1 in)

Multiple Choice

What is the number 2 in binary?

Multiple Choice

What is the number 5 in binary?

Multiple Choice

What is the number 13 in binary?

Multiple Choice

What is the number 6 in binary?

Multiple Choice

What is the number 14 in binary?

Poll

How well do you feel you reached our learning outcome?

To know how computers store data

• I am confident on how computers store data

• I know how computers store data

• I am unsure how computers store data

• I didn't understand today's lesson

Poll

How well do you feel you reached our learning outcome?

To convert between 4-bit binary numbers

• I can convert between binary and maths confidently.

• I need some help to convert between binary and maths.

• I am stuck on converting between binary and maths

• I didn't understand today's lesson