12th Class English Medium Computer Science Full Book Online Short Questions Preparation

Question # 1

What is the use of MS-Access?

Ans 1: Use of MS-Access:

1) Access can also understand and use a wide variety other data formats, including many other database file structure .
2) You can export data to and import data from word processing files, spreadsheet ,or database files directly.
3) it stores data in its own format based on the Access Jet Database Engine.

Question # 2

Write down output of the following code.Void main ( ){int x= 10;If (x! = 10)Printf ("Hello");ElsePrintf ("World");}

Ans 1: Output : World

Question # 3

What is Assembly Language?

Ans 1: Assembly level language is a set of codes that can run directly on the computer's processor. This type of language is most appropriate in writing operating systems and maintaining desktop applications. With the assembly level language it is easier for a programmer to define commands. It is easier to understand and use as compared to machine language.

Question # 4

List three names of functions used for charter input.

Ans 1: The data type char is used to represent a letter, number.A char type variable occupies 1 byte in memory and can represent
Individual characters such as 'a' ,'x' '5', and '#' etc. (The character '5' is manipulated quite differently than the integer 5 in the computer, so one should not consider both the same. We shall thoroughly discuss the topic in next chapter).In C,a character is expressed as enclosed in apostrophes such as 'a'.'e','i','o'. And 'u' etc.

Question # 5

Write the output of the following code.
Int x, y,z, r;
Printf("Enter three numbers;");
Scanf("%d%d%d", &x,&y, &z);
r =x + y z ;
Printf( "Enter three numbers :");
Scanf ("%d%d%d", &x,&y,&z);
r = x+y z;
Printf ("%d",r);

Ans 1: Output :
Enter three number 235
r = 17

Question # 6

List Some Advantages of Query.

Ans 1: 1) High Speed
2) Well Defined Standards Exist \
3) No Coding Required
4) Emergence of RDBMS

Question # 7

What are preprocessor directives?

Ans 1: Preprocessor directives are commands that give instruction to the C preprocessor. The preprocessor is a program that modifies the program .(Source program) prior to its compilation. A preprocessor directive always begins with the symbole (#). In the above program, include is preprocessor directives.

Question # 8

Find error in the following segment .
Float y 3.14;
If (y == 3)
Printf ("Errors");

Ans 1: Errors: is equal sign has not been used in statement where variable y is being declared.

Question # 9

Trace the output.
Void main() {
Int a, b, temp;
a =10;
b =10;
temp =b;
b = a
a = temp;
Printf ("%d\n",a);
Printf ("%d\n",b);
Getch ( ) ;}

Ans 1: Output: a = 20
b = 10

Question # 10

Trace the output.
Int I = 10
Printf ("%3d",i);

Ans 1: Output: i=10

Question # 11

Define Database.

Ans 1: A database is a collection of logically related data sets of files.Normally these files are of different nature,used for specific purpose.These may be organized on various ways to meet various processing and retrieval requirements of the organization or users.

Question # 12

Trace the error in the following code.
Float area , r
Printf (" Enter Radius")
scanf(%f"r);

Ans 1: Errors:
- 1st error no Main body is present
- 2nd error is : terminator sign is not present in statement where variable is defined.

Question # 13

Differentiate between increment and decrement operators.

Ans 1: Increment Operators: The increment operator increase the value of its operand by one. It is denoted by the symbole ++.
Example: Count++, Where count is a variable. The effect of this expression is equivalent to the following expression:
Count =
Count +1;
Ans 2: Decrement Operators: The decrement operator decreases the value of its operand by one. It is denoted by the symbol--.
Example count--, where count is a variable . The effect of this expression is equivalent to the following expression:
Count =
Count -1;

Question # 14

Write the syntax of if-else statement .

Ans 1: if-else statement : The keyword else has been used to specify two different choices with if statement
Syntax:
If (condition)
{
block of if (true case)
}
Else
{
block of else (false true)}
Explanation: if the condition is true the block of if statement is executed and if the condition is false, the block of else statement is executed

Question # 15

Differentiate between string constant and character constant .

Ans 1: String Constant : String constant are always enclosed in double quotes.'A'or '?' . A Character constant has an equivalent integer value
.
Ans 2: Character Constant : Character Constant are enclosed in apostrophes (single quotation marks). "ABC" or %d\n\n . A single -character string constant does not have an equivalent integer value.

Question # 16

Determine output of the following code segment.
Int n = 1;
Do
{
Printf("Pakistan\n");
N++;
} while (n<=4);

Ans 1: Output:
Pakistan
Pakistan
Pakistan
Pakistan

Question # 17

Find output of the following code.
#include <stdio.h>
Void main

{
Int i, p=1;
For (i = 1; I < 6; I +=1)
P* 2;
Printf ("p is = %d",p);
}

Ans 1: Output;
2
2
2
2

Question # 18

What is difference between Relation and Relationship.

Ans 1: Relation:A two dimensional array or table of data containing descriptive information about an entity.The entity must have a unique identifier,which is composed of a combination of one or more attributes and each attributes must have one and only one value.
Ans 2: Relationship:The relationship indicated how the entities/Objects are connected or related to each other,
- All the relationship defines the relevant connections between both objects.
- All the relationship are bi-directional.

Question # 19

Trace the output.
Int number = 6;
Int x= 0;
X =-- number ;
Printf ("%d",x);

Ans 1: Output: x=5

Question # 20

Define Data Type.

Ans 1: In C, the data type defines a set of values and aset of operations on those values. We know that computer program manipulates various types of data. In a C program we may need to process different types of data . Therefore variables should be capable of storing data of different types.This is done by associating certain data types to the variables.There are two different types of data.
- Standard Data Types
- User-define Data Types

Test Name	Total Questions	PDF File	Launch Test
ICS Part 2 Computer Science Chapter 1 Short Questions Preparation	22	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 2 Short Questions Preparation	18	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 3 Short Questions Preparation	16	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 4 Short Questions Preparation	13	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 5 Short Questions Preparation	25	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 6 Short Questions Preparation	20	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 7 Short Questions Preparation	23	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 8 Short Questions Preparation	43	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 9 Short Questions Preparation	48	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 10 Short Questions Preparation	95	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 11 Short Questions Preparation	64	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 12 Short Questions Preparation	29	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 13 Short Questions Preparation	16	Download PDF	Launch Test
ICS Part 2 Computer Science Chapter 14 Short Questions Preparation	12	Download PDF	Launch Test

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Computer Science ICS Part 2 Computer Science Short Questions Preparation

What is the use of MS-Access?

Write down output of the following code.Void main ( ){int x= 10;If (x! = 10)Printf ("Hello");ElsePrintf ("World");}

What is Assembly Language?

List three names of functions used for charter input.

Write the output of the following code.Int x, y,z, r;Printf("Enter three numbers;");Scanf("%d%d%d", &x,&y, &z);r =x + y *z ;Printf( "Enter three numbers :");Scanf ("%d%d%d", &x,&y,&z);r = x+y* z;Printf ("%d",r);

List Some Advantages of Query.

What are preprocessor directives?

Find error in the following segment .Float y 3.14;If (y == 3)Printf ("Errors");

Trace the output.Void main() {Int a, b, temp;a =10;b =10;temp =b;b = aa = temp;Printf ("%d\n",a);Printf ("%d\n",b);Getch ( ) ;}

Trace the output.Int I = 10Printf ("%3d",i);

Define Database.

Trace the error in the following code.Float area , rPrintf (" Enter Radius")scanf(%f"r);

Differentiate between increment and decrement operators.

Write the syntax of if-else statement .

Differentiate between string constant and character constant .

Determine output of the following code segment.Int n = 1;Do{Printf("Pakistan\n");N++;} while (n<=4);

Find output of the following code.#include <stdio.h>Void main{Int i, p=1;For (i = 1; I < 6; I +=1)P* 2;Printf ("p is = %d",p);}

What is difference between Relation and Relationship.

Trace the output.Int number = 6;Int x= 0;X =-- number ;Printf ("%d",x);

Define Data Type.

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