# Number systems: Binary - the language of computers

In this lesson, we will be exploring the binary code and its use in computing.

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

• Click "Close Video"
• Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Binary - the language of computers

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.Write 101(base 2) in base 10.

1/5

Q2.Write 111(base 2) in base 10.

2/5

Q3.What is 101(base 2) x 101(base 2) in base 2?

3/5

Q4.write 23(base 10) in base 2.

4/5

Q5.Why is base 2 called binary?

5/5

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Binary - the language of computers

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.Write 101(base 2) in base 10.

1/5

Q2.Write 111(base 2) in base 10.

2/5

Q3.What is 101(base 2) x 101(base 2) in base 2?

3/5

Q4.write 23(base 10) in base 2.

4/5

Q5.Why is base 2 called binary?

5/5

# Lesson summary: Number systems: Binary - the language of computers

## Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Climb stairs

On the spot:
Chair yoga