Past Papers of Computer 10th Class Lahore Board 2017 Group-I

Past Papers of Computer 10th Class Lahore Board 2017 Group-I
 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. The statement X (30) will reserve _____ memory locations:
(A) 29
(B) 30
(C) 31
(D) None

2. CTRL + Y is used for:
(A)  Undo
(B)  Redo
(C) Find
(D) Page break

3. The function us used to convert ASCII codes to its character equivalent:
(A) CHAR $ ()
(B) CHR ( )
(C) CHAR ()
(D) CHR $ ( )

4. There are types of array:
(A) 1
(B) 2
(C) 3
(D) 4

5. Which function changes the way of displaying output in BASIC:
(A) SCREEN
(B) PRINT
(C) LEFT $
(D) ABS

6. Which of the following operators has the highest precedence:
(A) A
(B) *
(C) +
(D) =

7. The maximum length of a variable name in GW-Basic is:
(A) 31
(B) 40
(C) 32
(D) 45

8. Which of the following is not a logical operator:
(A) AND
(B) OR
(C) NEITHER NOT

9. The diamond symbol represents the:
(A) Input/Output
(B) Decision making
(C) Processing
(D) Remarks

10. Division by zero is:
(A) Syntax error
(B)  Logical error
(C) Runtime error
(D) Not an error

Past Papers of Computer Science 10th Class BISE Lahore 2017
COMPUTER SCIENCE (ESSAY TYPE) GROUP-I 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) What is syntax error?

(iii) Define Bugs and debugging.

(iv) What is problem identification?

(v) Write purpose and syntax of AUTO command.

(vi) Differentiate between CLS and CLEAR command.

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

(i) What is difference between GOTO and ON-GOTO statement?

(ii) What is nested loop?

(iii) Explain menu bar.

(iv) What is status bar?

(v) What is shortcut key of cut?

(vi) Explain line spacing.

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

(i) Define filling of an array.

(ii) State types of array.

(iii) Explain numeric function.

(iv) State syntax and purpose of FIX function.

(v) State high resolution graphic mode.

(vi) Explain LINE statement.

(PART-II)

Note: Attempt any TWO questions.

5. Define variable. Also write rules for naming variables in GW-BASIC. 8

6. What is loop? Explain its types. 8

7. What is subroutine? Explain it with the use of GOSUB and RETURN statements. 8