The Interactive Binary Lesson!

Part 1: How Numbers Work (4-Bit)

Let's learn the basics with 4 "bits".

In Base 2 (Binary), computers use 2 digits (0 & 1). Each column is double the one on the right.

Click the bits! See how 1010 in binary is (1x8) + (0x4) + (1x2) + (0x1) = 10.

Part 2: 6-Bit Binary

Let's add two more bits. The pattern continues!

Challenge: Can you make the number 42?

(Hint: 32 + 8 + 2)

Part 3: 8-Bit Binary (A "Byte")

Computers usually group 8 bits together. This is called a "byte".

Challenge: Can you make the number 150?

(Hint: 128 + 16 + 4 + 2)

Part 4: Practice (4-Bit)

Let's start easy. What are these 4-bit numbers? One attempt only!

Part 5: Practice (6-Bit)

Getting harder! What are these 6-bit numbers? One attempt only!

Part 6: Practice (8-Bit)

Full bytes! What are these 8-bit numbers? One attempt only!

Part 7: Make the Number (4-Bit)

Click the bits to make the number. One attempt only!

Part 8: Make the Number (6-Bit)

Click the 6 bits to make the number. One attempt only!

Part 9: Make the Number (8-Bit)

Final practice! Click the 8 bits to make the number. One attempt only!

Part 10: Challenge Puzzles

Final test! Answer these to prove your mastery. One attempt only!