Past Papers of Computer 10th Class Lahore Board 2018 Group-II

Past Papers of Computer 10th Class Lahore Board 2018 Group-II
 COMPUTER SCIENCE GROUP-I (OBJECTIVE TYPE)
TIME ALLOWED: 15 MINUTES MAX. MARKS: 10

NOTE: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with marker or pen ink. Cutting or filling two or more circles will result in zero mark in that question.

1. Which of the following is not a valid subscript:

(A) NUM (10)

(B) A (2)

(C) B (4)

(D) A (-2)

2. The number of background colors available in BASIC is:

(A) 4

(B) 8

(C) 12

(D) 16

3. FOR NEXT statement is used for:

(A) Iteration

(B) Selection

(C) Sequence'

(D) All of these

4. The output of SIN (04) is:

(A) ‘-‘sign

(B) ‘ + ‘ sign

(C) 0

(D) None of these

5. Division by zero is:

(A) Syntax error

(B) Logical error

(C) Rutime error

(D) Not an error

6. The diamond symbol represents the:

(A) Input / Output

(B) Decision making

(C) Processing

(D) Remarks

7. Dimension statement uses the keyword:

(A) DMS

(B) DS

(C) DIM

(D) DM

8. Which of the following is a shortcut key to run GW-BASIC program:

(A) F4

(B) F3

(C) F2

(D) F1

9. CTRL + Y is used for:

(A) Undo

(B) Redo

(C) Find

(D) Page Break

10. Which of the following operator has the highest precedence:

(A) ^

(B) *

(C) +

(D) =

Past Papers of Computer Science 10th Class BISE Lahore 2017
COMPUTER SCIENCE (ESSAY TYPE) GROUP-II PAPER-II
TIME ALLOWED: 1:45 HOURS MAX. MARKS: 40

(PART-I)

2. Write short answers to any FOUR (4) questions: (8)

(i) Write two limitations of Flow chart.

(ii) Define algorithm.

(iii) What do you mean by problem solving?

(iv) What is debugging?

(v) Write the pupose and syntax of AUTO command.

(vi) Define keywords.

3. Write short answers to any FOUR (4) questions: (8)

(i) What is the transfer of control?

(ii) Define nested loop.

(iii) Differentiate between Copy and Paste.

(iv) What is formatting?

(v) How is text made bold in MS-Word?

(vi) What are header and footer?

4. Write short answers to any FOUR (4) questions. (8)

(i) Define two dimensional array.

(ii) Describe the use of subscript variable in array.

(iii) What is Built-in function?

(iv) What is the difference between sequential and random file?

(v) What is purpose of DRAW statement?

(vi) Define pixel.

(PART-II)

Note: Attempt any TWO questions.

5. What is constant? Discuss different types of constant in B ASIC. 8

6. Define While-Wend loop, also describe syntax, flow chart and explain with program. 8

7. Write syntax of CIRCLE statement, also explain with an example. 8