# Binary Digits

In this lesson, we will grasp what binary digits are by associating them with familiar sets of symbols such as letters and decimal digits. We will solve simple problems that reinforce the connection between (alphanumeric) information and its binary representation.

# 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.

Quiz:

# Binary Digits

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

Q1.What is ASCII?

1/7

Q2.What is the length of this sequence: "slide"?

2/7

Q3.How many different characters can be encoded using 7 bits?

3/7

Q4.How many different character are there with an 8-bit coding scheme?

4/7

Q5.How many binary digits does it take to represent the message: Great work!

5/7

Q6.How many 3-bit numbers can there possibly be?

6/7

Q7.How many 1-bit sequences can there possibly be?

7/7

Quiz:

# Binary Digits

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

Q1.What is ASCII?

1/7

Q2.What is the length of this sequence: "slide"?

2/7

Q3.How many different characters can be encoded using 7 bits?

3/7

Q4.How many different character are there with an 8-bit coding scheme?

4/7

Q5.How many binary digits does it take to represent the message: Great work!

5/7

Q6.How many 3-bit numbers can there possibly be?

6/7

Q7.How many 1-bit sequences can there possibly be?

7/7

# Lesson summary: Binary Digits

## Time to move!

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

For 5 mins...

Move around:
Jog

On the spot:
Chair yoga