Computer System Class 11 MCQ

Teachers and Examiners (CBSESkillEduction) collaborated to create the Computer System Class 11 MCQ. All the important Information are taken from the NCERT Textbook Computer Science (083) class 11.

Computer System Class 11 MCQ

1. A computer along with additional hardware and software together is called a ___________.
a. Device System
b. Computer System 
c. Electronic System
d. None of the above

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b. Computer System

2. CPU is the electronic circuitry of a computer that carries out the actual processing and usually referred to as the ___________ of the computer.
a. Heart
b. Brain 
c. Head
d. None of the above

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b. Brain

3. Physically, a CPU can be placed on one or more microchips called ____________.
a. integrated circuits (IC) 
b. Capacitor
c. Transistor
d. None of the above

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a. integrated circuits (IC)

4. The CPU is given instructions and data through programs. The CPU then fetches the program and data from the memory and performs _______________ as per the given instructions and stores the result back to memory.
a. Logical Operation
b. Arithmetic Operation
c. Arithmetic and Logic operations 
d. None of the above

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c. Arithmetic and Logic operations

5. While processing, the CPU stores the data as well as instructions in its local memory called __________.
a. Registers 
b. Gate
c. Catch
d. None of the above

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a. Registers

6. CPU is also known as _____________.
a. Microprocessor 
b. Gate
c. Catch
d. None of the above

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a. Microprocessor

7. _____________ controls sequential instruction execution, interprets instructions and guides data flow through the computer’s memory.
a. Control Unit 
b. Arithmetic Logical Unit
c. Memory Unit
d. None of the above

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a. Control Unit

8. The devices through which control signals are sent to a computer are termed as __________.
a. Output Device
b. Input Device 
c. Process
d. None of the above

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b. Input Device

9. Data entered through the input device is temporarily stored in the __________ of the computer system.
a. Read only memory
b. Random Access Memory 
c. Secondary Memory
d. None of the above

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b. Random Access Memory

10. The device that receives data from a computer system for display, physical production, etc., is called _________.
a. Output Device 
b. Input Device
c. Process
d. None of the above

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a. Output Device

11. _________ printer used to build physical replica of digital 3D design (It is used to create prototypes).
a. LaserJet
b. Inkjet
c. Dot-Matrix
d. 3D-Printer 

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d. 3D-Printer

12. Blaize Pascal invented a mechanical calculator known as ____________.
a. Tabulating Machine
b. Pascaline 
c. Analytic Engine
d. None of the above

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b. Pascaline

13. Charles Babbage invented __________ mechanical computing device for inputting, processing, storing and displaying the output.
a. Tabulating Machine
b. Pascaline
c. Analytic Engine 
d. None of the above

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c. Analytic Engine

14. __________ is known as the father of computers.
a. Blaize Pascale
b. Charles Babbage 
c. Herman Hollerith
d. None of the above

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b. Charles Babbage

15. ______ was created 3000 years ago, and it is capable of performing basic arithmetic operations.
a. Analytic Engine
b. Abacus 
c. Turing Machine
d. Tabulating Machine

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b. Abacus

16. John Von Neumann invented a ____________ machine that can store both programmes and data in memory.
a. EDVAC
b. ENIAC
c. Both a) and b) 
d. None of the above

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c. Both a) and b)

17. __________ is a silicon chip which contains an entire electronic circuit on a very small area and helps to reduce the size of the computer.
a. Vacuum Tubes
b. Integrated Circuit 
c. Transistor
d. None of the above

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b. Integrated Circuit

18. ____________ architecture having a central processing unit, memory to store data and program, input and output devices and communication channels to send or receive the output data.
a. Von Neumann Architecture 
b. Blaize Pascal Architecture
c. Herman Hollerith Architecture
d. Charles Babbage Architecture

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a. Von Neumann Architecture

19. ENIAC Stands for __________.
a. Electric Numerical Interpreter and Calculator
b. Electronic Numerical Integrator and Computer 
c. Electric Numerical Integrator and Calculator
d. None of the above

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b. Electronic Numerical Integrator and Computer

20. Which architecture is based on a binary program.
a. Von Neumann Architecture 
b. Blaize Pascal Architecture
c. Herman Hollerith Architecture
d. Charles Babbage Architecture

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a. Von Neumann Architecture

21. During the 1970s, Large Scale Integration (LSI) of electronic circuits allowed integration of complete CPUs on a single chip, called ______________.
a. Silicon Chip
b. Microprocessor 
c. Microcomputer
d. None of the above

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b. Microprocessor

22. VLSI Stands for ___________.
a. Very Large Scale Integration 
b. Very Last Scale Integration
c. Very Large Small Integration
d. None of the above

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a. Very Large Scale Integration

23. With further technological improvement, it is now possible to create an integrated circuit (IC) with a high density of transistors and other components (about 106 components). This process is known as _____________.
a. Very Large Scale Integration
b. Super Large Scale Integration 
c. Small Scale Integration
d. None of the above

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b. Super Large Scale Integration

24. IBM introduced its first personal computer in the year of ________.
a. 1971
b. 1975
c. 1981 
d. 1985

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c. 1981

25. Apple introduced Macintosh machines in __________.
a. 1971
b. 1975
c. 1980
d. 1984 

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d. 1984

26. _____________ operating system based on command line interface.
a. UNIX
b. DOS
c. Both a) and b) 
d. None of the above

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c. Both a) and b)

27. WWW stands for ___________.
a. World Wide Web 
b. World Widest Web
c. World Web Wide
d. None of the above

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a. World Wide Web

28. The device that can link to other systems and devices via the Internet or other communication networks and exchange data with them is known as ____________.
a. Internet of Web (IoW)
b. Internet of Things (IoT) 
c. Internet of Intelligence (IoI)
d. None of the above

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b. Internet of Things (IoT)

29. The binary digits 0 and 1, which are the basic units of memory, are called __________.
a. Bytes
b. Nibble
c. Bite 
d. None of the above

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c. Bite

30. The 4-bit word is called a _________.
a. Bytes
b. Nibble 
c. Bite
d. None of the above

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b. Nibble

31. 1KB = ___________.
a. 1024 Bytes 
b. 1024 KB
c. 1024 MB
d. None of the above

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a. 1024 Bytes

32. 1 TB = _________.
a. 1024 KB
b. 1024 MB
c. 1024 GB 
d. None of the above

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c. 1024 GB

33. __________ is a volatile memory.
a. RAM 
b. ROM
c. CPU
d. None of the above

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a. RAM

34. RAM stands for ___________.
a. Random Applicable Memory
b. Random Access Memory 
c. Random Acceptable Memory
d. None of the above

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b. Random Access Memory

35. RAM and ROM is usually referred to as __________.
a. Secondary Memory
b. Main Memory
c. Primary Memory
d. Both b) and c) 

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d. Both b) and c)

36. To speed up the operations of the CPU, a very high speed memory is placed between the CPU and the primary memory known as ___________.
a. Secondary Memory
b. Primary Memory
c. Cache Memory 
d. Main Memory

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c. Cache Memory

37. Examples of secondary memory devices include ____________.
a. Hard Disk
b. Compact Disk
c. Pen Drive
d. All of the above 

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d. All of the above

38. Data is transferred between different components of a computer system using physical wires called _________.
a. Data Bus 
b. Cache Memory
c. Secondary Memory
d. Primary Memory

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a. Data Bus

39. Which one of the following is a member of System Bus.
a. Data Bus
b. Address Bus
c. Control Bus
d. All of the above 

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d. All of the above

40. Data Bus sends the data __________, and Address Bus sends the address __________.
a. Bidirectional, Unidirectional 
b. Bidirectional, Bidirectional
c. Unidirectional, Unidirectional
d. Unidirectional, Bibirectional

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a. Bidirectional, Unidirectional

41. ____________ is a small-sized electronic component inside a computer that carries out various tasks involved in data processing as well as arithmetic and logical operations.
a. Microchip
b. Microprocessor 
c. Main Chip
d. None of the above

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b. Microprocessor

42. Examples of fifth generations of microprocessors are ___________.
a. Pentium
b. Celeron
c. Xeon
d. All of the above 

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d. All of the above

43. Microprocessors are classified on the basis of different features which include ___________.
a. Word Size
b. Memory Size
c. Clock Speed
d. All of the above 

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d. All of the above

44. Word size is the maximum number of bits that a microprocessor can process at a time, now the maximum word size is __________ bits.
a. 8 Bits
b. 16 Bits
c. 32 Bits
d. 64 Bits 

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d. 64 Bits

45. The _____________ indicates the speed at which the computer can execute instructions.
a. Core
b. Memory Size
c. Clock Speed 
d. None of the above

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c. Clock Speed

46. Microprocessor having a basic computation unit is known as ___________.
a. Core 
b. Clock Speed
c. Memory Size
d. None of the above

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a. Core

47. The ___________ is a small computing device which has a CPU, a fixed amount of RAM, ROM and other peripherals all embedded on a single chip.
a. Microprocessor
b. Microchip
c. Microcontroller 
d. None of the above

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c. Microcontroller

48. Which of the following computers considers as data ____________.
a. Picture
b. Songs & Video
c. Document
d. All of the above 

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d. All of the above

49. A computer system has many input devices, which provide it with raw data in the form of ____________.
a. Facts
b. Concepts
c. Instructions
d. All of the above 

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d. All of the above

50. Data which follows a strict record structure and is easy to comprehend is called __________.
a. Structured Data 
b. Unstructured Data
c. Semi-structured Data
d. None of the above

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a. Structured Data

51. Data which is not organized in a predefined record format is called ___________.
a. Structured Data
b. Unstructured Data 
c. Semi-structured Data
d. None of the above

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b. Unstructured Data

52. Data which have no well-defined structure but maintain internal tags or markings to separate data elements are called ____________.
a. Structured Data
b. Unstructured Data
c. Semi-structured Data 
d. None of the above

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c. Semi-structured Data

53. The software that provides the basic functionality to operate a computer by interacting directly with its constituent hardware is termed as ___________.
a. System Software 
b. Programming tools
c. Application Software
d. None of the above

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a. System Software

54. An ___________ is the most basic system software, without which other software cannot work.
a. System Software
b. Programming tools
c. Application Software
d. Operating System 

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d. Operating System

55. Software used for maintenance and configuration of the computer system is called ___________.
a. System Software
b. Programming tools
c. System Utilities 
d. Operating System

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c. System Utilities

56. The ___________ acts as an interface between the device and the operating system.
a. Device Driver 
b. Programming tools
c. System Utilities
d. Operating System

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a. Device Driver

57. In computers it is very difficult for a human being to write instructions in the form of __________.
a. High level language
b. Low level language
c. 1s and 0s 
d. All of the above

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c. 1s and 0s

58. ____________ are machine dependent languages and include machine language and assembly language.
a. Low level language 
b. High level language
c. 4th Generation language
d. None of the above

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a. Low level language

59. Machine language uses _________ to write instructions which are directly understood and executed by the computer.
a. High level language
b. Low level language
c. 1s and 0s 
d. All of the above

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c. 1s and 0s

60. Example of High level language.
a. C++
b. Java
c. Python
d. All of the above 

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d. All of the above

61. a __________ is needed to convert a program written in assembly or high level language to machine language.
a. Language Reader
b. Language Translator 
c. Language Coder
d. None of the above

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b. Language Translator

62. The program code written in assembly or high-level language is called __________.
a. Program code
b. Source code 
c. Text code
d. None of the above

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b. Source code

63. Example of translator in computer system.
a. Assembler
b. Compiler
c. Interpreter
d. All of the above 

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d. All of the above

64. The translator used to convert the code written in assembly language to machine language is called ________.
a. Assembler 
b. Compiler
c. Interpreter
d. All of the above

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a. Assembler

65. __________ translator takes one line, converts it into executable code if the line is syntactically correct, and then it repeats these steps for all lines in the source code.
a. Assembler
b. Compiler
c. Interpreter 
d. All of the above

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c. Interpreter

66. The application software developed for generic applications, to cater to a bigger audience in general are called __________.
a. Customized Software
b. General Purpose Software 
c. Both a) and b)
d. None of the above

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b. General Purpose Software

67. Examples of general purpose software are __________.
a. LibreOffice
b. GIMP
c. Mozilla or Chrome
d. All of the above 

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d. All of the above

68. These are custom or tailor-made application software, that are developed to meet the requirements of a specific organization or an individual is known as _________.
a. General Purpose Software
b. Customized Software 
c. Digital Software
d. None of the above

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b. Customized Software

69. Examples of customized software are ____________.
a. School Management Software
b. Accounting Software
c. User-defined Software
d. All of the above 

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d. All of the above

70. The developers of some application software provide their source code as well as the software freely to the public, with an aim to develop and improve further with each other’s help this type of software is known as _________.
a. Free Software
b. Open Source Software
c. Both a) and b) 
d. None of the above

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c. Both a) and b)

71. Examples of open source software in computer systems are _________.
a. Libreoffice
b. Python
c. Mozilla Firefox
d. All of the above 

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d. All of the above

72. Some of the software is freely available for use but source code may not be available, such software is called _________.
a. Open Source Software
b. Freeware Software 
c. Both a) and b)
d. None of the above

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b. Freeware Software

73. An __________ can be considered to be a resource manager which manages all the resources of a computer.
a. Operating System 
b. Application Program
c. Open Source
d. All of the above

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a. Operating System

74. The primary objectives of an operating system are __________.
a. Two-fold
b. Interface to the user
c. Both a) and b) 
d. None of the above

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c. Both a) and b)

75. ____________ is often less interactive and usually allows a user to run a single program at a time.
a. Command-based Interface 
b. Graphical User Interface
c. Both a) and b)
d. None of the above

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a. Command-based Interface

76. Example of command-based interface operating system.
a. Ms-Dos
b. Unix
c. Both a) and b) 
d. None of the above

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c. Both a) and b)

77. ____________run programs or give instructions to the computer in the form of icons, menus and other visual options.
a. Command-based Interface
b. Graphical User Interface 
c. Both a) and b)
d. None of the above

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b. Graphical User Interface

78. Example of graphical user-interface.
a. Windows Operating System
b. Ubuntu Operating System
c. Macintosh Operating System
d. All of the above 

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d. All of the above

79. _________ interface allows users to interact with the system simply using the touch input.
a. Command-based Interface
b. Graphical User Interface
c. Touch-based Interface 
d. None of the above

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c. Touch-based Interface

80. __________ interface helps people with special needs and people who want to interact with computers or smartphones while doing some other task.
a. Command-based Interface
b. Graphical User Interface
c. Touch-based Interface
d. Voice-based Interface 

Show Answer ⟶
d. Voice-based Interface

81. Example of Voice-based Interface.
a. iOS (Siri)
b. OK Google or Google Now
c. Windows 10 (Cortana)
d. All of the above 

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d. All of the above

82. __________ interface interacts with the device using waving, tilting, eye motion and shaking.
a. Gesture-based Interface 
b. Graphical User Interface
c. Touch-based Interface
d. Voice-based Interface

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a. Gesture-based Interface

83. ___________ concerns the management of multiple processes, allocation of required resources, and exchange of information among processes.
a. Process Management 
b. Memory Management
c. File Management
d. Device Management

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a. Process Management

84. ___________ concerns with management of main memory so that maximum memory is occupied or utilized by a large number of processes while keeping track of each and every location within the memory as free or occupied.
a. Process Management
b. Memory Management 
c. File Management
d. Device Management

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b. Memory Management

85. File management system manages secondary memory, while a memory management system handles the main memory of a computer system.
a. Process Management
b. Memory Management
c. File Management 
d. Device Management

Show Answer ⟶
c. File Management
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