Computer Science II - For Class X (Science) - Guess Papers 2024 - By Sir Sajjad Akber Chandio

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Class X (Science)
Computer Science II
Guess Paper 2024

By Sir Sajjad Akber Chandio
Q.1: (a) Write down the uses of Scratch Editor and describe Script area in Scratch Editor?
(b) Write the use of the following codes of Scratch Editor:

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

Q.2: Write down difference between?

1. Algorithm and Flowchart
2. NAND Gates and NOR Gates
3. Local Variables and Global Variables gates

Q.3: Define Function and describe its types?
Q.4: Draw a flowchart to calculate gross salary by adding 20% house rent and 30% medical allowances in basic salary?
Q.5: Write down Advantages any one of following?

1. Flowchart
2. Algorithm
3. I.D.E

Q.6: Define Language Translator and describe its types?
Q.7: Define purpose of followings 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 Comment Statement in C⁺⁺ and describes its types?
Q.10: Write down the function of inverter?
Q.11: Write down relationship Basic logical gates and universal logical gates?
Q.12: Why we make block of statement using braces?
Q.13: What is the purpose of keyword “void” in function?
Q.14: Write down uses of Boolean algebra? Solve the followings by truth table:

1. Y = A.B.C
2. Y = A + B + C

Q.15: Define flowchart and its symbols? Write down Importance of flow chart?
Q.16: Define operators and its types?
Q.17: Define Loop and write down difference between for loop, while Loop and do while Loop?
Q.18: Define problem solving and its steps?