Binary Code Worksheet for Kids - Learn to Convert Letters to Binary Code with Fill-in Circles

Let's solve the binary code worksheet step by step.

---

Task:

For each letter in the word "COMPUTER", write its binary code using 8 bits (as shown in the key), and then fill in the circles corresponding to the 1s in the binary code.

We are given a Binary Letter Code Key:

```
A-01000001 J-01001010 S-01010010
B-01000010 K-01001011 T-01010010
C-01000011 L-01001100 U-01010101
D-01000100 M-01001101 V-01010110
E-01000101 N-01001110 W-01010111
F-01000110 O-01001111 X-01011000
G-01000111 P-01010000 Y-01011001
H-01001000 Q-01010001 Z-01011010
I-01001001 R-01010010
```

---

Now, let’s find the binary code for each letter in "COMPUTER":

---

Step-by-step:

1. C → From the key:
C = 01000011

2. O →
O = 01001111

3. M →
M = 01001101

4. P →
P = 01010000

5. U →
U = 01010101

6. T →
T = 01010010

7. E →
E = 01000101

8. R →
R = 01010010

---

Now, we’ll fill in the blanks and color the circles where there is a 1.

---

Final Answer:

```
C = 0 1 0 0 0 0 1 1 OR ○ ● ○ ○ ○ ○ ● ●
O = 0 1 0 0 1 1 1 1 OR ○ ● ○ ○ ● ● ● ●
M = 0 1 0 0 1 1 0 1 OR ○ ● ○ ○ ● ● ○ ●
P = 0 1 0 1 0 0 0 0 OR ○ ● ○ ● ○ ○ ○ ○
U = 0 1 0 1 0 1 0 1 OR ○ ● ○ ● ○ ● ○ ●
T = 0 1 0 1 0 0 1 0 OR ○ ● ○ ● ○ ○ ● ○
E = 0 1 0 0 0 1 0 1 OR ○ ● ○ ○ ○ ● ○ ●
R = 0 1 0 1 0 0 1 0 OR ○ ● ○ ● ○ ○ ● ○
```

> 🔹 Key:
> - `○` = 0 (leave blank)
> - `●` = 1 (fill in with any color)

---

✔ Instructions for the Student:

- Write the 8-bit binary code next to each letter.
- Then, for each bit:
- If it's 0, leave the circle blank.
- If it's 1, color the circle in.

So, for example:
- For C = 01000011, you would color the 2nd, 7th, and 8th circles.

---

🧠 Why This Matters:

This activity teaches how computers store text using binary code — every letter is represented by a unique sequence of 0s and 1s (ASCII codes). The binary codes here are 7-bit ASCII codes padded to 8 bits (with a leading zero).

---

✔ Completed Worksheet Summary:

| Letter | Binary Code | Circles (1s filled) |
|--------|-------------|---------------------|
| C | 01000011 | ● at positions 2,7,8 |
| O | 01001111 | ● at 2,5,6,7,8 |
| M | 01001101 | ● at 2,5,6,8 |
| P | 01010000 | ● at 2,4 |
| U | 01010101 | ● at 2,4,6,8 |
| T | 01010010 | ● at 2,4,7 |
| E | 01000101 | ● at 2,6,8 |
| R | 01010010 | ● at 2,4,7 |

> 💡 Tip: Use colored pencils or markers to make the pattern visible!

---

Let me know if you'd like a printable version or visual diagram!