#### Full Portion - Important One Mark Question Paper

11th Standard

Reg.No. :
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Computer Science

Time : 01:30:00 Hrs
Total Marks : 100

Multiple Choice Question

100 x 1 = 100
1. A first generation computers used ______.

(a)

Vacuum tubes

(b)

Transistors

(c)

Integrated circuits

(d)

Microprocessors

2. Identify the input device _____

(a)

Printer

(b)

Mouse

(c)

Plotter

(d)

Projector

3. _____ output device is used for printing building plan, flex board, etc.

(a)

Thermal printer

(b)

Plotter

(c)

Dot matrix

(d)

Inkjet printer

4. In ATM machines, which one of the following is used to ____

(a)

Touch Screen

(b)

Speaker

(c)

Monitor

(d)

Printer

5. When a system restarts _______ which type of booting is used.

(a)

Warm booting

(b)

Cold booting

(c)

Touch boot

(d)

Real boot

6. Expand POST

(a)

Post on self Test

(b)

Power on Software Test

(c)

Power on Self Test

(d)

Power on Self Text

7. Which one of the following is the main memory?

(a)

ROM

(b)

RAM

(c)

Flash drive

(d)

Hard disk

8. Which generation of computer used IC's

(a)

First

(b)

Second

(c)

Third

(d)

Fourth

9. Which of the following is not Second generatton computers?

(a)

IBM1401

(b)

IBM1620

(c)

UNIVAC1108

(d)

UNIVAI

10. Super Conductors are used in _____ generation computers.

(a)

fourth

(b)

sixth

(c)

fifth

(d)

third

11. The present computers are belongs to _____ generation.

(a)

Seventh

(b)

Eighth

(c)

Sixth

(d)

Fifth

12. Every task given to a computer-follows a(n) ______ cycle.

(a)

BPO

(b)

IPO

(c)

ANN

(d)

NLP

13. Expansion of CPU is _____

(a)

Control processing unit

(b)

Central processor unique

(c)

Central processing unit

(d)

Control processor unit

14. Which company developed first digital computer?

(a)

Atanasoft Berry Computer

(b)

AT & T bell

(c)

IBM

(d)

Microsoft

15. Match the Following

 (i) Out device (1) Retrieve the data is possible (ii) CPU (2) Data and instructions given to the computer (iii) Memory (3) Temporarily stores data (iv) Mass Storage Device (4) Delivers the data processed by CPU (v) Input Device (5) Executes Instruction
(a)

5,4,1,2,3

(b)

4,5,3,1,2

(c)

4,5,3,2,1

(d)

5,4,3,2,1

16. How many bytes does 1 KiloByte contain?

(a)

1000

(b)

8

(c)

4

(d)

1024

17. 2$\wedge$50 is referred as

(a)

kilo

(b)

Tera

(c)

Peta

(d)

Zetta

18. How many characters can be handled in Binary Coded Decimal System?

(a)

64

(b)

255

(c)

256

(d)

128

19. NAND is called as ......Gate

(a)

Fundamental Gate

(b)

Derived Gate

(c)

Logical Gate

(d)

Electronic gate

20. The processed data is called

(a)

Information

(b)

Knowledge

(c)

datum

(d)

files

21. 1 Byte = ........... bits.

(a)

8

(b)

16

(c)

1024

(d)

512

22. Which complement performs the logical negation on each individual bit?

(a)

Signed

(b)

Unsigned

(c)

2's

(d)

1's

23. The most popular way of representing negative numbers in computer systems is.......

(a)

I's complement

(b)

Signed bit

(c)

2's complement

(d)

All of these

24. The 2's complement of 11012 is

(a)

11002

(b)

10102

(c)

01012

(d)

00112

25. Expansion of BCD is......

(a)

Bar Code Decoding

(b)

Binary Code Digit

(c)

Binary Coded Decimal

(d)

Byte Coded Decimal

26. Which of the following programs uses ASCII Code?

(a)

Only C

(b)

only  C++

(c)

Both C, C++

(d)

Java

27. The Tamil alphabets have.....

(a)

soup

(b)

grantha

(c)

numerals

(d)

All of these

28. The______operator is defined in booolgan algebra by the use of the dot (.) operator.

(a)

AND

(b)

OR

(c)

NOT

(d)

NAND

29. ________ is the general idea behind positional numbering system

(a)

(b)

Computer memory

(c)

Binary number

(d)

Decimal number

30. Which of the following is not the part of a microprocessor unit?

(a)

ALU

(b)

Control unit

(c)

Cache memory

(d)

register

31. Which of the following device identifies the location when address is placed in the memory address register?

(a)

locator

(b)

encoder

(c)

decoder

(d)

multiplexed

32. Display devices are connected to the computer through __________

(a)

USB port

(b)

Ps/2 port

(c)

SCSI port

(d)

VGA connector

33. Which ofthe following is not included in computer organization?

(a)

I/O devices

(b)

Software

(c)

CPU

(d)

Main memory

34. The first general purpose Microprocessor developed by ............

(a)

IBM

(b)

Intel

(c)

Apple

(d)

Microsoft

35. The first commercial microprocessor is a ..........bit processor.

(a)

8

(b)

16

(c)

4

(d)

2

36. How many types of Register the CPU has?

(a)

4

(b)

2

(c)

8

(d)

16

37. Which of the following is an example of RISC processor?

(a)

Intel 386

(b)

Motorola 68000

(c)

AMD K7

(d)

Intel 486

38. 1 MB.................is KB.

(a)

256

(b)

512

(c)

1024

(d)

128

39. Which RAM is more expensive?

(a)

SRAM

(b)

DRAM

(c)

RAM

(d)

ERAM

40. Expansion of HDMI is .................

(a)

Higher Display Multimedia Information

(b)

High Definition Memory Information

(c)

High Definition Multimedia Interface

(d)

High Definition Media Interface

41. Identify the usage of Operating Systems

(a)

Easy interaction between the human and computer

(b)

Controlling Input & Output Devices

(c)

Managing use of main memory

(d)

All the above

42. Which of the following is not a Function of Operating System?

(a)

Process Management

(b)

Memory Management

(c)

Security management

(d)

Compiler Environment

43. Which of the following OS is a Commercially licensed Operating system?

(a)

Windows

(b)

UBUNTU

(c)

FEDORA

(d)

REDHAT

44. Which of the following Operating system are support Mobile Devices?

(a)

Windows 7

(b)

Linux

(c)

BOSS

(d)

iOS

45. Which of the following acts as an interface between a user and a computer?

(a)

Input device

(b)

Output device

(c)

Operating system

(d)

Bus

46. Which of the following operating systems not used in laptops?

(a)

Windows

(b)

Linux

(c)

iOS

(d)

Unix

47. Which of the following is not a Multiuser Operating system?

(a)

Unix

(b)

Linux

(c)

Windows

(d)

none of these

48. Real time OS are mostly used for

(a)

Robotics

(b)

Weather

(c)

Airline communication

(d)

Bank

49. Which operating system provides GUI?

(a)

Distributed

(b)

Real time

(c)

Interactive

(d)

Multi-User

50. Interactive operating system is a____

(a)

GUI

(b)

CUI

(c)

UI

(d)

OS

51. Which of the following is not a mobile device?

(a)

Phone

(b)

tablet

(c)

MP3 Player

(d)

Apple iOS

52. Which is the default folder for many Windows Applications to save your file?

(a)

My Document

(b)

My Pictures

(c)

Documents and Settings

(d)

My Computer

53. Under which of the following OS, the option Shift + Delete - permanently deletes a file or folder?

(a)

Windows 7

(b)

Windows 8

(c)

Windows 10

(d)

All of the OS

54. What is the meaning of "Hibernate" in Windows XP/Windows 7?

(a)

Restart the Computer in safe mode

(b)

Restart the Computer in hibernate mode

(c)

Shutdown the Computer terminating all the running applications

(d)

Shutdown the Computer without closing the running applications

55. Where will you select the option to log out suspend, restart, or shut down from the desktop of Ubuntu OS?

(a)

Session Indicator

(b)

Launcher

(c)

Files

(d)

Search

56. Which button is used to get the Windows desktop?

(a)

Aerotop

(b)

Aeroseek

(c)

Aeropeck

(d)

Aerodesk

57. How many disk drive options are there in Windows?

(a)

4

(b)

3

(c)

5

(d)

6

58. What is the name of the bar which appear at the bottom of the screen?

(a)

Scroll bar

(b)

Title bar

(c)

(d)

59. Which facility provides you to move or copy the file or folders in Windows?

(a)

Windows Explorer

(b)

My computer

(c)

This PC

(d)

Recycle bin

60. Which are the symbols seen while collapsing and expanding the folder list in Windows explorer?

(a)

*,?

(b)

@,?

(c)

+,-

(d)

*,-

61. Which icon on the desktop is used to recover the deleted files and folders?

(a)

My computer

(b)

This PC

(c)

Recycle bin

(d)

Computer bin

62. Which must be created on files and folders and placed on the Desktop to help automate your work?

(a)

Icons

(b)

(c)

Shortcuts

(d)

Program

63. How many types of windows you can work with?

(a)

3

(b)

2

(c)

1

(d)

Many

64. Which of the following characters are used to search multiple files and folders?

(a)

Numeric

(b)

Alphanumeric

(c)

Wild card

(d)

All of these

65. Which of the following activities is algorithmic in nature?

(a)

Assemble a bicycle

(b)

Describe a bicycle.

(c)

Label the parts of a bicycle.

(d)

Explain how a bicycle works.

66. Omitting details inessential to the task and representing only the essential features of the task is known as

(a)

specification

(b)

abstraction

(c)

composition

(d)

decomposition

67. Stating the input property and the as output relation a problem is known

(a)

specification

(b)

statement

(c)

algorithm

(d)

definition

68. If i = 5 before the assignment i = i-1 after the assignment, the value of i is

(a)

5

(b)

4

(c)

3

(d)

2

69. In computers, operations on data performed by

(a)

instructions

(b)

program

(c)

process

(d)

all of these

70. The data stored in a variable is also called

(a)

value

(b)

process

(c)

input

(d)

control flow

71. Which changes when a process evolves?

(a)

State

(b)

behaviour

(c)

Process

(d)

Procedure

72. Which of the following is not an algorithm design technique?

(a)

Specification

(b)

Abstraction

(c)

Control flow

(d)

Composition

73. Decomposition means

(a)

States the relation between the input and the output

(b)

Hiding unnecessary details

(c)

An algorithm is composed of assignment and control flow statement.

(d)

Dividing the main algorithm into functions

74. Which serves as a contract between the designer and users of the algorithm?

(a)

Abstraction

(b)

Specification

(c)

Composition

(d)

Decomposition

75. What is the specification of the algorithm?

(a)

divide (A + B)

(b)

square - root(n)

(c)

square - root (x)

(d)

76. Which of the following statement is false?
(i) Algorithms are not composed of statements
(ii) Algorithms expressed in Pseudo code are intended to be executed by computers.
(iii) Flowchart not give a visual intuition of the flow of control
(iv) Pseudo code is not a notation similar to the programming language.
(v) All of these

(a)

only (ii) and (iv)

(b)

only (ii), (iii), (iv)

(c)

only (i) and (ii)

(d)

(v)

77. Which of the following is the most widely used notation to represent algorithms?

(a)

Flowchart

(b)

Pseudo code

(c)

English language

(d)

all of these

78. Which of the following statement is used to alter the normal flow of control?

(a)

Compound

(b)

Assignment

(c)

Executable

(d)

All of these

79. Which of the following is not a control flow statement?

(a)

Sequential

(b)

Assignment

(c)

Alternative

(d)

Iterative

80. Which of the following describes a test of the statement?

(a)

Order

(b)

Condition

(c)

Statement

(d)

Instruction

81. Which statement executes the same action repeatedly?

(a)

Sequential

(b)

Conditional

(c)

Iterative

(d)

All of these

82. Suppose u, v = 10, 5 before the assignment. What are the values of u and v after the sequence of assignments?
1 u :=v
2 v := u

(a)

u, v = 5,5

(b)

u, v = 5 ,10

(c)

u, v = 10,5

(d)

u, v = 10 ,10

83. Which of the following properties is true after the assignment (at line 3)?
1 -- i+j = 0
2 i, j := i1+, j1-
3 -- ?

(a)

i + j > 0

(b)

i+j < 0

(c)

i+j=0

(d)

i = j

84. If C1 is false and C2 is true, the compound statement
1 if CI
2 SI
3 else
4 if C2
5 S2
6 else
7 S3
executes

(a)

S1

(b)

S2

(c)

S3

(d)

none

85. If C is false just before the loop, the control flows through
1 SI
2 while C
3 S2
4 S3

(a)

S1 ; S3

(b)

S 1 ; S2 ; S3

(c)

S 1 ; S2 ; S2 ; S3

(d)

S 1 ; S2 ; S2 ; S2 ; S3

86. If C is true, S1 is executed in both the flowcharts, but S2 is executed in

(a)

(1) only

(b)

(2) only

(c)

both (1) and (2)

(d)

neither (1) nor (2)

87. How many times the loop is iterated?
i:= 0
while i $\neq$5
i := i+ 1

(a)

4

(b)

5

(c)

6

(d)

0

88. __________ is a diagrammatic notation for representing algorithms.

(a)

Pseudo code

(b)

Flowchart

(c)

Program

(d)

Languages

89. A loop invariant need not be true

(a)

at the start of the loop

(b)

at the start of each iteration

(c)

at the end of each iteration

(d)

at the start of the algorithm

90. We wish to cover a chessboard with dominoes, the number of black squares and the number of white squares covered by dominoes, respectively, placing a domino can be modeled by

(a)

b:= b + 2

(b)

w:= w + 2

(c)

b, w := b1+, w1+

(d)

b:= w

91. Using this recursive definition${ a }^{ n }=\begin{cases} 1\quad \quad \quad \quad \quad \quad ifn=0 \\ a\times { a }^{ n }-1\quad otherwise \end{cases}$how many multiplications are needed to calculate a10?

(a)

11

(b)

10

(c)

9

(d)

8

92. Which of the following algorithm design techniques to execute the same action repeatedly

(a)

Assignment

(b)

Iteration

(c)

Recursion

(d)

Both b and c

93. Which of the following is updated when each time the loop body is executed?

(a)

Data

(b)

Variables

(c)

Function

(d)

All of these

94. The unchanged variables of the loop body is called loop

(a)

condition

(b)

loop statement

(c)

loop variable

(d)

loop invariant

95. Which of the following is the key to construct iterative algorithms

(a)

loop invariant

(b)

loop updation

(c)

loop variable

(d)

lop condition

96. How many base case at least must be in recursion?

(a)

1

(b)

2

(c)

4

(d)

3

97. ___________is an algorithm design technique, closely related to induction.

(a)

Iteration

(b)

Invariant

(c)

Loop invariant

(d)

Recursion

98. In which year E W Dijkstra was awarded ACM Turing Award?

(a)

1972

(b)

1974

(c)

1970

(d)

1971

99. In a loop, if L is an invariant of the loop body B, then L is known as a __________

(a)

recursion

(b)

variant

(c)

loop invariant

(d)

algorithm

100. Recursion must have at least ____________ base case.

(a)

one

(b)

two

(c)

three

(d)

four