9th Class Computer Notes Chapter-02

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Binary System:

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9th Class Computer Notes Chapter-02:

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Computer Ch#02, 09th Class

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1 / 70

Commonly used number systems are ______________

2 / 70

Group of Eight bits is enough space to store single ASCII character, which is called _______

3 / 70

Data to a processor is provided through______________

11 characters left

4 / 70

A device which can hold data even if it is not connected to any power source, is called __________

5 / 70

Which Unit size of memory is smallest in computer memory?

6 / 70

According to _________ law there is no change in result if priority of expressions is changed.

7 / 70

Number “17” is equal to ___________ in binary system.

8 / 70

During conversion Binary to Hexadecimal, if the left group has been less then 4-digits then, we simply ______________

9 / 70

Compound proposition is true only if ________________

10 / 70

“236598” is an example of _____________

11 / 70

Expression (A + B ) . (A+C) is equal to ____________

12 / 70

In Non-Volatile memory, if we turn of power, the data stored in devices __________

13 / 70

We get a _____________when some logical operator is applied to the Boolean proposition.

14 / 70

To convert_____________, simply convert each hexadecimal digit to four binary values

15 / 70

To Convert ________________________, we divide the number by 2 and take Quotient and Remainder.

16 / 70

If “9” is in Hexadecimal, then its binary value is ____________

17 / 70

1-Petabyte is equal to ______________

  • (1024)4 bytes
  • (1024)6 bytes
  • (1024)5 bytes
  • (1024)7 bytes

Select Correct Option

18 / 70

To Convert ______________________, divide the number by 16 and take Quotient and Remainder.

19 / 70

During conversion Binary to Hexadecimal, we make the group from ___________

20 / 70

All the characters on keyboard have an associated code which is called ___________

21 / 70

Which is/ are the characteristic of volatile memory devices?

22 / 70

The number system which has base 2 and it uses only 2-digits (0, 1) is called _______

23 / 70

This is not a characteristic of Secondary storage devices_____________

24 / 70

The logical operator___________ is not a connector but it is used to negate a proposition.

25 / 70

The order of application of two separate terms is not important in _____________

26 / 70

“It is Cold outside” is a ____________

27 / 70

“BO93A5” is an example of ______________

28 / 70

Which Unit size of memory is biggest in computer memory?

29 / 70

______________help us to simplify complex Boolean Expression.

30 / 70

A number system is the system of representation of ____________

31 / 70

If “E” is in Hexadecimal, then its binary value is ____________

32 / 70

Temporary Memory is also called __________

33 / 70

To assemble more than one operation and make a single proposition, we use _________

34 / 70

A device which holds data as long as, it has power supply connected to it, is called _______

35 / 70

Every proposition takes one out of two values _________, which is called truth values

36 / 70

This Expression “( A + B ) + C = A  + ( B + C )” is the example of __________

37 / 70

ASCII stands for ________________

38 / 70

_____________ may also be written as “P + Q”

39 / 70

___________ may also be written as  ﬧP

40 / 70

This Expression “A + B  =  B + A” is the example of __________

41 / 70

Permanent memory is also called __________

42 / 70

  1. A Truth Table is used to check a proposition, weather it is _____________

43 / 70

External Devises are just plug and play, it means________

44 / 70

This Expression “A + ( B . C ) = ( A + B ) ( A + C )”  is the example of __________

45 / 70

Any computer hardware that is used for storing, porting and extracting data is called __________

46 / 70

In primary and secondary storages, data is stored in the form of _________

47 / 70

Hardware used for Storage devices may be _____________

48 / 70

This Expression “A + 0 = A”  is the example of __________

49 / 70

The smallest unit of data, can hold only one value 0 or 1 called __________

50 / 70

The number system which has base 16 and it use 16-digits (0to 9, A, B, C, D, E, F) is called _______

51 / 70

_____________ is any physical device which used for storing data.

52 / 70

___________ are assigned on the bases of Truthfulness or falsity of a proposition.

53 / 70

All Digital devices / Computers store data in _____________

54 / 70

Hexadecimal system has total _____ numbers.

55 / 70

In computer memory, At least one piece of information take place _____________

56 / 70

“1001001” is an example of _____________

57 / 70

Best example of _____________ is Random Access Memory (RAM)

58 / 70

In Boolean algebra, if we use OR Operator, the compound composition is true if ______________

59 / 70

Which Unit size of memory is smallest in computer memory?

60 / 70

The main types of Computer Memory is/ are ______________

61 / 70

Typical Example of _______________ is Hard drive, Memory Card, Flash Drive.

62 / 70

If “F” is in Hexadecimal, then its binary value is ____________

63 / 70

At least _________ byte(s) is required to store any piece of information in a computer’s memory.

64 / 70

__________ may also be written as “P . Q”

65 / 70

___________ is used to assemble more than one proposition into one proposition.

66 / 70

The number system which has base 10, also it uses ten digits (0-9) is called________

67 / 70

If “C” is in Hexadecimal, then its binary value is ____________

68 / 70

A Truth Table is used to check the truth value of a proposition when ___________ are used.

69 / 70

ASCII Codes are represented in Computer Memory after __________

70 / 70

According to Boolean algebra, ___________ is a sentence that can either be true or false.

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MCQs Chap # 02 – Computer Science 9th Class (Open/ Download)

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Short Question Answers Chap # 02 – Computer Science 9th Class (Open/ Download)

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Long Question Answers Chap # 02 – Computer Science 9th Class (Open/ Download)

 

9th Class Computer Science Notes & MCQS:

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Class 9 Computer Science Chapter-Wise Notes

 

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