9th Class MCQs Computer Science Chapter No.5

9th Class MCQs Computer Science Chapter No.5 Old Course,BISE Bahawalpur,Lahore Board,Rawalpindi Board,Faisalabad Board,Matric Exam online Preparation,Quiz

Book Name : Computer Science
Class / Grade : 9th
Level : (Secondary)
Chapter No. : 05
Chapter Name : NUMBER SYSTEM
Book Publisher : Punjab Text Book Board Lahore
MCQ from Text Book : 47

Exams conduct By: Board of Intermediate and Secondary Education Punjab
Note : All MCQs questions must be taken in Annual and Supplementary Papers from these MCQs

6

Class 9th - Computer Science Chapter No.05

1 / 47

The base of binary number system is:

2

16

8

10

2 / 47

3 x10¹ + 7 x 10° is equal to:

37

3.6

10

370

3 / 47

The number of digits in Hexadecimal system is:

8

16

10

2

4 / 47

A collection of raw facts and figure is called:

Output

Information

Data

Processing

5 / 47

BCD stands for

Base coded decimal

Byte coded decimal

Binary coded decimal

Bidirectional coded decimal

6 / 47

The difference of 111₂- 001₂ equals:

100

11

110

101

7 / 47

How many characters in ASCII 7-bit code can represent?

364 characters

500 characters

256 characters

128 characters

8 / 47

(011)4752105 is:

Alphanumeric data

Numeric data & Alphanumeric data

Alphabetic data

Numeric data

9 / 47

In hexadecimal number system, A is equal to decimal number

12

11

13

10

10 / 47

The binary number 1101 is equal to octal number

14

15

12

16

11 / 47

The 2’s complement of 0101010 is

1010101

None

11

1010110

12 / 47

The l's complement of 10011101 is:

1100010

11011110

10011111

10011110

13 / 47

The number of digits in decimal system is:

10

7

8

9

14 / 47

Which of the following is a data type?

Alphabetic

Numeric

ALL

Alphanumeric

15 / 47

Unicode is a ....

64-Bit Code

8-Bit Code

16-Bit Code

32-Bit Code

16 / 47

The F in Hexadecimal system is equivalent to _____________ in Decimal System.

13

12

15

14

17 / 47

In hexadecimal number system, A is equal to decimal number

12

10

11

13

18 / 47

The decimal number 18 is equal to the binary number

10010

11110

11011

10111

19 / 47

The FF in hexadecimal system is equivalent to decimal system number

256

254

128

255

20 / 47

How many characters in ASCII 8-bit code can represent?

128 characters

256 characters

1000 characters

500 characters

21 / 47

The base of octal number system is:

10

2

8

16

22 / 47

The E in hexadecimal is equal to binary number......

1110

1111

1101

1001

23 / 47

In hexadecimal number system, C is equal to decimal number

13

11

12

10

24 / 47

The BCD Number for decimal 16 is :

1000

11011011

10110

10000

25 / 47

The D in hexadecimal is Equal to binary number:

1011

1111

1001

1101

26 / 47

The hexadecimal number 10016 is equal to

All

256<sub>10</sub>

000100000000<sub>2</sub>

400<sub>8</sub>

27 / 47

A collection of 8 bits is known as:

Bit

Octal

Binary

Byte

28 / 47

The data after the processing is called:

Information

Procedure

Storage

Data

29 / 47

MSB stands for..

Middle sum byte

Most Significant bit

Minimum single bit

Maximum single bit

30 / 47

The most widely used coding scheme for representing characters in computers is:

BCD

ASCII

EBCDIC

Unicode

31 / 47

The hexadecimal number 1016 is equal to

100<sub>10</sub>

16<sub>10</sub>

All

10<sub>10</sub>

32 / 47

Which of the following binary numbers is equivalent to decimal 10?

1010

1111

1100

1001

33 / 47

The sign bit is defined as:

1 for negative

MSB

0 for positive

ALL

34 / 47

The base of hexadecimal number system is:

16

2

10

8

35 / 47

How many characters can unicode represents ....

256

2048

1024

65536

36 / 47

The numbers stored and transmitted inside a computer in:

Decimal form

Octal form

Binary form

Alphanumeric form

37 / 47

Binary multiplication 1x0=________

0

1

1

10

38 / 47

2⁰ is equal to:

2

3

0

1

39 / 47

What is the decimal value of 2⁴ is equal to?

8

32

16

64

40 / 47

1’s complement of a negative binary number can be calculated by:

Reversing the bit in the number & Reversing the bit in the number and adding one

Reversing the bit in the number and adding one

Reversing the bit in the number

Can not be calculated

41 / 47

If the most significant bit of the signed number is 1, that number is:

Positive

Octal

Incorrect

Negative

42 / 47

What is the decimal value of 2^-1 is equal to?

0.5

0.1

0.05

0.25

43 / 47

Which of the following data type is used to represent names of students:

Numeric data & Alphabetic data

Numeric data

Alphanumeric data

Alphabetic data

44 / 47

The base of decimal number system is:

8

16

2

10

45 / 47

The number of digits in octal system is:

9

8

10

7

46 / 47

What is the decimal value of 23?

4

8

6

10

47 / 47

The number of bits in a nibble is:

4

8

32

16

Your score is

The average score is 74%

0%

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