Computer Science II - For Class X (Science) - Guess Papers 2025 - By Sir Sajjad Akber Chandio

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Class X (Science)
Computer Science II
Guess Paper 2025

By Sir Sajjad Akber Chandio
Q.1: Write down the uses of Scratch Editor and describe Script area in Scratch Editor?
Q2: Write down difference between:
1: Basic logical gates and Universal logical gates.
Q.3: Write the use of the following codes of Scratch:

• Forever
• Editor
• wait
• play
• sound
• goto x, y
• say

Q.4: Draw a flowchart to calculate gross salary by adding 20% house rent and 30% medical allowances in basic salary?
Q.5: Define followings

1. Sprite
2. Script
3. Jump statement
4. Break statement
5. Continue statement
6. Return statement
7. Exit statement

Q.6: What is the need of index in an array?
Q.7: Define purpose of the following code with example.

1. Events
2. Motion
3. Control

Q.8: Simplification of followings expression:

1. Z = AB + A(B+C) + B(B+C)(A + B)(A + B)
2. (A + B) + (A + B) = A

Q.9: Define IDE and its components also mention advantages.
Q.10: Why we use header files.
Q.11: Practices correction of error in programs book examples.
Q.12: Define flowchart and its symbols? Write down Importance of flow chart?
Q.13: Define computer and list some common high level language used and describe the purpose?
Q.14: Define Loop and write down difference between for loop, while Loop and do while Loop?
Q.15: write down the flow chart of the followings with algorithm:

1. Average of three number
2. Multiplication and division two number

Q.16: Define following with types:

1. data structure
2. graph
3. comments statements
4. operator
5. comment statements

Q.17: what are the string in C++