7th class Computer, Chapter 4: Programming MCQs

1. What does a computer use to store information like pictures and songs?

1. (A) Text
2. (B) Binary Code ✓
3. (C) Decimal Code
4. (D) Morse Code

2. What does the binary number "0" represent in a computer?

1. (A) On
2. (B) Off ✓
3. (C) Empty
4. (D) Active

3. Which number system uses only the digits 0 and 1?

1. (A) Decimal
2. (B) Hexadecimal
3. (C) Binary ✓
4. (D) Roman

4. Which of the following is a decimal number system?

1. (A) 0, 1
2. (B) 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 ✓
3. (C) 0, 2, 4, 6, 8
4. (D) 0, 1, 2, 3, 4

5. What is the binary number "1011" equal to in decimal?

1. (A) 7
2. (B) 11 ✓
3. (C) 13
4. (D) 10

6. What do binary numbers help computers do?

1. (A) Display pictures only
2. (B) Store information and control hardware ✓
3. (C) Only write text
4. (D) Only play sound

7. How do you convert a decimal number to binary?

1. (A) Subtract by 2
2. (B) Divide by 2 and record the remainder ✓
3. (C) Multiply by 2 and record the remainder
4. (D) Add by 2

8. What is the binary representation of the letter "A" in ASCII?

1. (A) 01010101
2. (B) 00110001
3. (C) 01000001 ✓
4. (D) 10000001

9. What does each pixel in an image represent in a computer?

1. (A) A character
2. (B) A color in binary ✓
3. (C) A sound wave
4. (D) A number in decimal

10. What is a "sprite" in Scratch?

1. (A) A type of sound
2. (B) A character or object ✓
3. (C) A background image
4. (D) A tool for coding

11. A mistake in a computer program is called a:

1. (A) Bug ✓
2. (B) Key
3. (C) File
4. (D) Icon

12. After fixing a bug you should:

1. (A) Delete the program
2. (B) Run the program again to test it ✓
3. (C) Close the computer
4. (D) Ignore it