1.1 - Fundamental of Computer Systems.
1.1.1 - Introduction to Computer.
1. What is the primary function of a computer?
- A) To store data
- B) To play music
- C) To perform calculations and operations
- D) To make decisions
Correct Answer: C) To perform calculations and operations
2. What type of values does a digital computer use to represent internal data?
- A) Continuous values
- B) Distinct values, such as 0s and 1s
- C) Floating-point numbers
- D) Hexadecimal codes
Correct Answer: B) Distinct values, such as 0s and 1s
3. Which of the following is NOT a characteristic of computers?
- A) Speed
- B) Accuracy
- C) Diligence
- D) Independence
Correct Answer: D) Independence
4. Analogue computers are primarily used for what type of tasks?
- A) Word processing
- B) Real-time measurement of varying parameters
- C) Storing large volumes of data
- D) Playing video games
Correct Answer: B) Real-time measurement of varying parameters
5. Which characteristic allows computers to maintain the same speed and accuracy over extended periods?
- A) Versatility
- B) Storage capability
- C) Diligence
- D) Speed
Correct Answer: C) Diligence
6. What does the term "compute" mean?
- A) To process
- B) To calculate
- C) To store
- D) To display
Correct Answer: B) To calculate
7. Which type of memory temporarily holds data in a computer?
- A) Secondary memory
- B) Compact disks
- C) Primary memory
- D) Floppy disks
Correct Answer: C) Primary memory
8. What is an example of an analogue computer?
- A) Desktop computer
- B) Laptop
- C) Slide rule
- D) Tablet
Correct Answer: C) Slide rule
9. Which of the following best describes the versatility of a computer?
- A) Ability to perform calculations rapidly
- B) Capability to perform diverse tasks effortlessly
- C) Capacity to store large amounts of data
- D) Precision in calculations
Correct Answer: B) Capability to perform diverse tasks effortlessly
10. Which type of computer was used in the earliest stages of computer development?
- A) Digital computer
- B) Hybrid computer
- C) Quantum computer
- D) Analogue computer
Correct Answer: D) Analogue computer
1.1.2 - History and Evolution.
11. Which device is considered the first mechanical calculating device?
- A) Napier's Bones
- B) Slide Rule
- C) ABACUS
- D) Pascal's Adding Machine
Correct Answer: C) ABACUS
12. What was the purpose of Napier's Bones, created by John Napier in 1617 AD?
- A) Addition and subtraction
- B) Multiplication
- C) Division
- D) Complex mathematical calculations
Correct Answer: B) Multiplication
13. Who developed the slide rule, and in which century?
- A) Blaise Pascal, 17th century
- B) Gottfried Leibniz, 18th century
- C) John Napier, 16th century
- D) Edmund Gunter, 16th century
Correct Answer: D) Edmund Gunter, 16th century
14. Which of the following devices was designed by Blaise Pascal?
- A) Napier's Bones
- B) Punch Card System
- C) ABACUS
- D) Adding and Subtraction Machine
Correct Answer: D) Adding and Subtraction Machine
15. What was the key function of Leibniz's Multiplication and Dividing Machine?
- A) Counting large numbers
- B) Performing addition and subtraction
- C) Performing multiplication and division
- D) Processing information from punched cards
Correct Answer: C) Performing multiplication and division
16. The Punch Card System, invented by Jacquard in 1801, was initially used for:
- A) Controlling power looms
- B) Simple arithmetic operations
- C) Complex mathematical calculations
- D) Data storage
Correct Answer: A) Controlling power looms
17. Who is known as the father of the computer, and why?
- A) John Napier, for inventing Napier's Bones
- B) Charles Babbage, for developing the analytical engine
- C) Herman Hollerith, for creating the punched card tabulating machine
- D) Blaise Pascal, for inventing the adding and subtraction machine
Correct Answer: B) Charles Babbage, for developing the analytical engine
18. What was the purpose of Herman Hollerith's punched card tabulating machine?
- A) Multiplication and division
- B) Electronic processing of information from punched cards
- C) Simple counting operations
- D) Control of power looms
Correct Answer: B) Electronic processing of information from punched cards
19. What significant advancement did the Punch Card System contribute to modern digital computers?
- A) The use of gears and wheels
- B) The concept of electronic processing
- C) The foundation for the binary system (0s and 1s)
- D) The use of continuous data representation
Correct Answer: C) The foundation for the binary system (0s and 1s)
20. Which of the following machines is associated with both Charles Babbage and Lady Ada Lovelace?
- A) ABACUS
- B) Slide Rule
- C) Difference Engine
- D) Analytical Engine
Correct Answer: D) Analytical Engine
1.1.3 - Generation Of Computers.
21. Which generation of computers introduced the concept of artificial intelligence and "knowledge processors"?
- A) First Generation
- B) Second Generation
- C) Third Generation
- D) Fifth Generation
Correct Answer: D) Fifth Generation
22. What key feature distinguishes fourth-generation computers from their predecessors?
- A) Use of vacuum tubes
- B) Integration of transistors
- C) Implementation of microprocessors
- D) Use of magnetic core memory
Correct Answer: C) Implementation of microprocessors
23. What does the term "Very Large Integrated Circuits (VLICs)" refer to in the context of fourth-generation computers?
- A) Circuits with multiple transistors and resistors integrated on a single chip
- B) Large-sized vacuum tubes
- C) Basic integrated circuits with minimal components
- D) Advanced networking technologies
Correct Answer: A) Circuits with multiple transistors and resistors integrated on a single chip
24. Which memory type is described as being “burned” onto the chip and cannot be altered once created?
- A) RAM
- B) ROM
- C) PROM
- D) Magnetic Drum Memory
Correct Answer: B) ROM
25. During which generation did computers become significantly smaller and more portable due to advancements in miniaturization?
- A) First Generation
- B) Second Generation
- C) Third Generation
- D) Fourth Generation
Correct Answer: C) Third Generation
26. What was a major programming advancement during the second generation of computers?
- A) Development of high-level programming languages like BASIC
- B) Introduction of assembly language programming
- C) Use of integrated circuits
- D) Utilization of Very Large Integrated Circuits (VLICs)
Correct Answer: B) Introduction of assembly language programming
27. Which type of memory in fourth-generation computers allows data to be programmed and modified by the user?
- A) ROM
- B) RAM
- C) PROM
- D) Magnetic Drum Memory
Correct Answer: C) PROM
28. What was the primary role of high-level programming languages like FORTRAN and COBOL during the second generation?
- A) To improve the efficiency of magnetic core memory
- B) To provide easier programming options compared to machine code
- C) To enhance the use of punch cards
- D) To develop integrated circuits
Correct Answer: B) To provide easier programming options compared to machine code
29. Which generation of computers saw the development of early networking technologies such as ARPANET?
- A) First Generation
- B) Second Generation
- C) Third Generation
- D) Fourth Generation
Correct Answer: C) Third Generation
30. What is a key characteristic of fifth-generation computers in terms of their processing capabilities?
- A) They use only vacuum tubes for circuitry.
- B) They are designed to process billions of instructions per second.
- C) They are large, room-sized machines.
- D) They rely solely on punch cards for data input.
Correct Answer: B) They are designed to process billions of instructions per second.
1.1.4 - Classification of Computers.
31. What is a primary characteristic of analog computers?
- A) They use discrete signals to represent data.
- B) They operate with continuous electrical signals.
- C) They store data in binary form.
- D) They are designed for precise and accurate computations.
Correct Answer: B) They operate with continuous electrical signals.
32. Which type of computer is designed to handle both analog and digital data?
- A) Digital Computer
- B) Analog Computer
- C) Hybrid Computer
- D) Mainframe Computer
Correct Answer: C) Hybrid Computer
33. What is the main advantage of digital computers over analog computers?
- A) Faster computation of analog data
- B) Better accuracy and reliability in processing data
- C) Ability to handle continuous signals directly
- D) More suitable for solving differential equations
Correct Answer: B) Better accuracy and reliability in processing data
34. What is one of the key features of an Operational Amplifier (Op-Amp) used in analog computers?
- A) High output resistance
- B) Infinite voltage gain
- C) Limited input resistance
- D) Low-speed processing
Correct Answer: B) Infinite voltage gain
35. What distinguishes a special purpose computer from a general-purpose computer?
- A) It is designed for specific tasks only.
- B) It is versatile and can perform multiple tasks.
- C) It is typically used for data storage.
- D) It is designed to be more expensive.
Correct Answer: A) It is designed for specific tasks only.
36. What is a typical use case for a general-purpose computer?
- A) Performing specific scientific simulations
- B) Processing large financial transactions
- C) Running various software applications for diverse tasks
- D) Measuring heartbeat in medical applications
Correct Answer: C) Running various software applications for diverse tasks
37. Which type of computer is designed for use by individuals and is built around a microprocessor?
- A) Mainframe Computer
- B) Microcomputer
- C) Supercomputer
- D) Mini Computer
Correct Answer: B) Microcomputer
38. What is a characteristic of mini computers compared to microcomputers?
- A) More powerful than mainframes
- B) Less powerful than microcomputers
- C) Capable of supporting multiple users simultaneously
- D) Designed for personal use only
Correct Answer: C) Capable of supporting multiple users simultaneously
39. What feature makes mainframe computers suitable for large-scale applications and enterprise environments?
- A) Small physical size and portability
- B) Ability to handle millions of records in a day
- C) High speed of personal data processing
- D) Use of multiple microprocessors for single-task execution
Correct Answer: B) Ability to handle millions of records in a day
40. In what application are supercomputers most commonly used?
- A) Simple office tasks
- B) Home entertainment systems
- C) Complex scientific calculations and simulations
- D) Basic data entry tasks
Correct Answer: C) Complex scientific calculations and simulations
1.1.5 - Application of Computers.
41. Which of the following is NOT a typical feature of supercomputers?
- A) High processing speed
- B) Use of pipelining and parallelism
- C) High cost and large physical size
- D) Limited to performing a small number of tasks at a time
Correct Answer: D) Limited to performing a small number of tasks at a time
42. What is the primary purpose of a hybrid computer?
- A) To exclusively use digital data for processing
- B) To integrate both analog and digital processing features
- C) To handle large-scale commercial transactions
- D) To perform basic arithmetic operations only
Correct Answer: B) To integrate both analog and digital processing features
43. How are computers used in the field of education?
- A) For conducting physical fitness assessments
- B) For creating lecture notes, presentations, and administering online tests
- C) For cooking and food preparation
- D) For managing and maintaining physical libraries
Correct Answer: B) For creating lecture notes, presentations, and administering online tests
44. In what way do computers impact the entertainment industry?
- A) By improving physical fitness
- B) By enabling users to download movies, play games, and create music
- C) By managing office supplies
- D) By designing and manufacturing sports equipment
Correct Answer: B) By enabling users to download movies, play games, and create music
45. What role do computers play in sports?
- A) They help in cooking and food preparation for athletes.
- B) They are used to watch games, view scores, and train players.
- C) They are primarily used for weather forecasting.
- D) They assist in designing sports uniforms.
Correct Answer: B) They are used to watch games, view scores, and train players.
46. How do computers contribute to advertising?
- A) By managing physical store inventories
- B) By displaying advertisements on websites and facilitating email campaigns
- C) By designing and manufacturing advertising billboards
- D) By conducting market research personally
Correct Answer: B) By displaying advertisements on websites and facilitating email campaigns
47. In what way are computers utilized in medicine?
- A) By manually keeping track of medical records
- B) By storing patients' medical histories and assisting in surgeries
- C) By manufacturing medical equipment
- D) By providing physical therapy
Correct Answer: B) By storing patients' medical histories and assisting in surgeries
48. What is a primary use of computers in science and engineering?
- A) Designing kitchen appliances
- B) Performing complex scientific computations and simulations
- C) Managing human resources
- D) Conducting physical fitness assessments
Correct Answer: B) Performing complex scientific computations and simulations
49. How do computers assist governments in their operations?
- A) By organizing physical meetings
- B) By providing e-governance services and managing departmental websites
- C) By conducting physical security checks
- D) By maintaining office supplies
Correct Answer: B) By providing e-governance services and managing departmental websites
50. What are some common uses of computers in homes?
- A) Only for managing physical paperwork
- B) For education, gaming, managing accounts, and controlling home appliances
- C) For maintaining physical security systems
- D) For designing and constructing home furniture
Correct Answer: B) For education, gaming, managing accounts, and controlling home appliances
51. Which of the following fields uses computers for tasks like stock trading and online banking?
- A) Agriculture
- B) Banking and Finance
- C) Construction
- D) Textile Manufacturing
Correct Answer: B) Banking and Finance
52. How are computers integrated into everyday household appliances?
- A) By enhancing their physical strength
- B) By controlling functions in home theatre systems, food processors, and washing machines
- C) By manufacturing their physical components
- D) By designing their appearance
Correct Answer: B) By controlling functions in home theatre systems, food processors, and washing machines
53. In what capacity are computers used in law enforcement?
- A) By manually conducting criminal investigations
- B) By performing criminal searches and fingerprint matching
- C) By designing and constructing new police stations
- D) By organizing physical evidence storage
Correct Answer: B) By performing criminal searches and fingerprint matching
54. Which of the following is a significant application of computers in weather forecasting?
- A) Physical weather measurements
- B) Complex data analysis and prediction modeling
- C) Manual data recording
- D) Designing weather instruments
Correct Answer: B) Complex data analysis and prediction modeling
55. What role do computers play in the field of publishing?
- A) By printing physical books and newspapers
- B) By facilitating online publishing and managing digital content
- C) By manually editing written content
- D) By organizing book fairs
Correct Answer: B) By facilitating online publishing and managing digital content
1.1.6 - Capabilities and Limitations of Computers.
56. What does the term "Speed" refer to in the context of computer capabilities?
- A) The time a computer system takes to execute a task
- B) The physical size of the computer system
- C) The number of users accessing the computer system simultaneously
- D) The amount of storage space available in the computer system
Correct Answer: A) The time a computer system takes to execute a task
57. Which standard is used to classify computers based on their speed?
- A) Data Transfer Rate (DTR)
- B) Million Instructions per Second (MIPS)
- C) Operations per Minute (OPM)
- D) Processor Speed Index (PSI)
Correct Answer: B) Million Instructions per Second (MIPS)
58. What is a key factor contributing to the accuracy of computer calculations?
- A) The number of users
- B) The physical location of the computer
- C) The precision in calculations and task performance
- D) The computer's physical design
Correct Answer: C) The precision in calculations and task performance
59. What is one way computer systems ensure reliability in highly automated industries?
- A) By using manual data entry
- B) By implementing backup facilities
- C) By reducing the number of users
- D) By limiting the storage capacity
Correct Answer: B) By implementing backup facilities
60. How does a computer’s storage capability benefit organizations?
- A) By increasing the physical size of the computer
- B) By allowing immediate data access and retaining large amounts of data
- C) By limiting the number of calculations per second
- D) By reducing the need for backup facilities
Correct Answer: B) By allowing immediate data access and retaining large amounts of data
61. What is a significant limitation of computers regarding common sense?
- A) They can perform tasks at high speeds
- B) They lack the ability to reason and make nuanced judgments
- C) They can store vast amounts of data
- D) They can perform repetitive tasks without fatigue
Correct Answer: B) They lack the ability to reason and make nuanced judgments
62. Why do computers have a "zero IQ"?
- A) They cannot perceive or autonomously deduce actions without programming
- B) They can perform complex tasks without any programming
- C) They have an inherent ability to adapt to unforeseen circumstances
- D) They are equipped with advanced decision-making capabilities
Correct Answer: A) They cannot perceive or autonomously deduce actions without programming
63. What is a notable limitation in decision-making for computer systems?
- A) They can follow predetermined procedures but lack nuanced decision-making abilities
- B) They can make decisions based on context-specific information
- C) They have an inherent ability to adapt and respond to new situations
- D) They can independently create new algorithms for decision-making
Correct Answer: A) They can follow predetermined procedures but lack nuanced decision-making abilities
64. Which of the following is NOT a capability of computers?
- A) Speed
- B) Accuracy
- C) Common Sense
- D) Reliability
Correct Answer: C) Common Sense
65. What is one factor that can cause errors in Computer-Based Information Systems (CBIS)?
- A) High speed of processing
- B) Poor programming and erroneous data
- C) Extensive data storage
- D) Reliable task performance
Correct Answer: B) Poor programming and erroneous data
66. How do computers exhibit accuracy in their operations?
- A) By performing tasks with high speed
- B) By minimizing errors in hardware
- C) By detecting and correcting errors autonomously
- D) By requiring human intervention for error detection
Correct Answer: C) By detecting and correcting errors autonomously
67. Which of the following is a limitation of computer storage?
- A) High data retrieval speed
- B) Extensive storage capabilities
- C) Compact physical footprint
- D) Limited capacity for data retention
Correct Answer: D) Limited capacity for data retention
1.1.7 - Components of Computer System.
68. What are the four integral components of a computer system?
- A) Hardware, Software, Data, Users
- B) Keyboard, Mouse, Monitor, Printer
- C) CPU, Memory, Disk, Network
- D) Input, Process, Output, Storage
Correct Answer: A) Hardware, Software, Data, Users
69. What does the term "Hardware" refer to in a computer system?
- A) The collection of programs and applications
- B) The physical components of the computer
- C) The data that is processed
- D) The users who operate the computer
Correct Answer: B) The physical components of the computer
70. Which part of the CPU is responsible for executing arithmetic operations?
- A) Control Unit (CU)
- B) Arithmetic Logic Unit (ALU)
- C) Memory Unit
- D) Input/Output Unit
Correct Answer: B) Arithmetic Logic Unit (ALU)
71. What is the primary function of the Control Unit (CU) in the CPU?
- A) To execute arithmetic operations
- B) To manage the input and output devices
- C) To retrieve and decode instructions from memory
- D) To store data temporarily during processing
Correct Answer: C) To retrieve and decode instructions from memory
72. What is the primary role of system software?
- A) To manage the computer hardware and interact with application software
- B) To perform specific tasks for the user, like word processing
- C) To create and edit multimedia content
- D) To store user data and applications
Correct Answer: A) To manage the computer hardware and interact with application software
73. Which type of software includes spreadsheets, word processors, and presentation programs?
- A) System software
- B) Application software
- C) Hardware drivers
- D) Operating systems
Correct Answer: B) Application software
74. How is data presented in a computer system?
- A) Only in quantitative form
- B) Only in qualitative form
- C) In both quantitative and qualitative forms
- D) Only as text files
Correct Answer: C) In both quantitative and qualitative forms
75. What unit of information is represented by 8 bits in a computer system?
- A) Byte
- B) Kilobyte
- C) Megabyte
- D) Gigabyte
Correct Answer: A) Byte
76. Who are considered as "users" of computer systems?
- A) Only the individuals who design computer hardware
- B) Only the individuals who create software
- C) Both the individuals who use computer systems and those who design them
- D) Only the professionals working in computer system development
Correct Answer: C) Both the individuals who use computer systems and those who design them
77. What concept describes the process of accepting data, processing it, generating output, and storing data?
- A) Input-Process-Output
- B) Data Management Cycle
- C) System Software Operations
- D) Computer Hardware Functions
Correct Answer: A) Input-Process-Output
78. What does the "Input" stage of the Input-Process-Output concept involve?
- A) Processing data to generate output
- B) Storing data for future retrieval
- C) Receiving data from the user via input devices
- D) Displaying the processed data to the user
Correct Answer: C) Receiving data from the user via input devices
79. Which part of the computer system is responsible for transforming user-provided data into a format understandable by the computer?
- A) Output Unit
- B) Memory Unit
- C) Input Unit
- D) CPU
Correct Answer: C) Input Unit
80. What does the "Memory Unit" in a computer system do?
- A) It handles arithmetic and logic operations
- B) It temporarily stores data, instructions, and intermediate results
- C) It manages input and output operations
- D) It stores data permanently for future retrieval
Correct Answer: B) It temporarily stores data, instructions, and intermediate results
81. Which of the following is NOT a primary part of computer hardware?
- A) Input/Output (I/O) Unit
- B) CPU
- C) Memory Unit
- D) System Software
Correct Answer: D) System Software
82. What type of data is expressed numerically?
- A) Qualitative Data
- B) Quantitative Data
- C) Textual Data
- D) Graphic Data
Correct Answer: B) Quantitative Data
83. What does the "Output" stage of the Input-Process-Output concept involve?
- A) Accepting data from the user
- B) Storing data on secondary storage media
- C) Displaying the processed data to the user
- D) Processing data to generate results
Correct Answer: C) Displaying the processed data to the user
84. What is the main role of the "Output Unit" in computer hardware?
- A) To transform data into a format understandable by the computer
- B) To process arithmetic and logic operations
- C) To present processed data in an understandable format
- D) To temporarily store data and instructions
Correct Answer: C) To present processed data in an understandable format
1.1.8 - CPU Control Unit and ALU.
1: What is the main focus of computer architecture?
- A) Physical layout of hardware components
- B) Fundamental properties and connectivity of hardware components
- C) Design of software applications
- D) User interface design
Correct Answer: B) Fundamental properties and connectivity of hardware components
2: What does computer organization primarily deal with?
- A) Software design
- B) Achieving specific performance and function goals
- C) Arrangement and design of hardware components
- D) Data storage formats
Correct Answer: C) Arrangement and design of hardware components
3: Which of the following factors does NOT typically influence computer organization?
- A) Cost
- B) Physical dimensions
- C) Technology employed
- D) User preferences
Correct Answer: D) User preferences
4: What is the primary role of the CPU in a computer system?
- A) Managing external devices
- B) Processing data and managing system components
- C) Storing data permanently
- D) Displaying information on the screen
Correct Answer: B) Processing data and managing system components
5: Which of the following is NOT a phase of the CPU cycle?
- A) Fetching
- B) Decoding
- C) Transmitting
- D) Executing
Correct Answer: C) Transmitting
6: What does the Control Unit (CU) of the CPU do?
- A) Performs arithmetic operations
- B) Carries out logical operations
- C) Regulates data flow and manages execution order
- D) Stores data
Correct Answer: C) Regulates data flow and manages execution order
7: What kind of operations does the Arithmetic Unit (AU) perform?
- A) Logical operations
- B) Memory management
- C) Arithmetic operations like addition and subtraction
- D) Data transmission
Correct Answer: C) Arithmetic operations like addition and subtraction
8: Which operations are typically handled by the Logic Unit (LU)?
- A) Data storage
- B) Input/output operations
- C) Logical operations like comparison and shifting
- D) Network communication
Correct Answer: C) Logical operations like comparison and shifting
9: What type of memory is described as "volatile" and only stores data temporarily?
- A) ROM
- B) RAM
- C) Cache
- D) Hard Disk
Correct Answer: B) RAM
10: Which of the following is the fastest and smallest type of cache memory?
- A) Main Memory
- B) Secondary Cache (L2)
- C) Primary Cache (L1)
- D) Hard Disk Cache
Correct Answer: C) Primary Cache (L1)
11: What is the role of the Programme Counter (PC) register?
- A) Storing arithmetic results
- B) Keeping track of the next instruction to execute
- C) Holding intermediate logical operations
- D) Managing memory addresses
Correct Answer: B) Keeping track of the next instruction to execute
12: What kind of communication is used between the processor and I/O devices?
- A) Direct memory communication
- B) Interface unit-based communication
- C) Wireless communication
- D) Serial communication
Correct Answer: B) Interface unit-based communication
13: Which register is used to hold the address of the next memory location to access?
- A) Memory Buffer Register (MBR)
- B) Memory Data Register (MDR)
- C) Instruction Register (IR)
- D) Memory Address Register (MAR)
Correct Answer: D) Memory Address Register (MAR)
14: How does the CPU communicate with memory to read data?
- A) Using the address bus to load the address into MAR and sending a READ signal
- B) Using the data bus to load data directly
- C) Using wireless signals to communicate with memory
- D) Directly accessing hard disk for data
Correct Answer: A) Using the address bus to load the address into MAR and sending a READ signal
15: What happens during the I/O write operation?
- A) CPU sends data to input devices
- B) Data is read from memory into the processor
- C) CPU writes data to an output device through the data register
- D) Data is transmitted over the internet
Correct Answer: C) CPU writes data to an output device through the data register
16: What is the role of the interface unit in processor and I/O device communication?
- A) It stores data permanently
- B) It manages the processor's arithmetic operations
- C) It translates CPU control commands for device controllers
- D) It controls the computer's power supply
Correct Answer: C) It translates CPU control commands for device controllers
17: What does the status register's flag bit indicate in I/O operations?
- A) The speed of the CPU
- B) The availability of data in the data register
- C) The completion of arithmetic operations
- D) The amount of available memory
Correct Answer: B) The availability of data in the data register
18: Which component acts as a bridge between the processor and the peripheral device controllers?
- A) Main memory
- B) Arithmetic Unit
- C) Interface unit
- D) Logic Unit
Correct Answer: C) Interface unit
19: Where is the primary cache (L1 cache) located in a computer system?
- A) On the motherboard
- B) Inside the CPU
- C) In the RAM
- D) In the hard disk
Correct Answer: B) Inside the CPU
20: Which of the following is slower but larger than the primary cache?
- A) RAM
- B) Secondary Cache (L2 Cache)
- C) Register
- D) Arithmetic Unit
Correct Answer: B) Secondary Cache (L2 Cache)
1.1.9 - I/O Devices.
1: Which unit is responsible for providing data to the computer for processing?
- A) Output unit
- B) Input unit
- C) Storage unit
- D) Processing unit
Correct Answer: B) Input unit
2: What is the role of the output unit in a computer system?
- A) To receive and send processed data to output devices
- B) To convert input data into a machine-readable format
- C) To provide data for processing by other computer components
- D) To store input data
Correct Answer: A) To receive and send processed data to output devices
3: Which of the following is NOT considered an input device?
- A) Keyboard
- B) Mouse
- C) Printer
- D) Scanner
Correct Answer: C) Printer
4: What does the input interface of an input device do?
- A) Transforms processed data into a human-readable format
- B) Converts input data into a format that the computer can understand
- C) Sends data to the output device
- D) Stores data for later use
Correct Answer: B) Converts input data into a format that the computer can understand
5: Which device is used to input drawings and sketches into a computer?
- A) Mouse
- B) Joystick
- C) Digitising tablet
- D) Keyboard
Correct Answer: C) Digitising tablet
6: Which device uses LED and sensors to detect movement?
- A) Physical mouse
- B) Trackball
- C) Optical mouse
- D) Joystick
Correct Answer: C) Optical mouse
7: What is the primary use of a joystick in computing?
- A) To input text data
- B) To control the cursor and perform actions on the screen
- C) To input graphical data for design
- D) To regulate the speed of the cursor in video games
Correct Answer: D) To regulate the speed of the cursor in video games
8: Which of the following devices is used for optical scanning of text and images?
- A) Keyboard
- B) Joystick
- C) Scanner
- D) Trackball
Correct Answer: C) Scanner
9: What function does the trackball serve in relation to computer input?
- A) It replaces a mouse and controls the pointer on the screen
- B) It inputs text and numeric data
- C) It records voice data
- D) It displays output data
Correct Answer: A) It replaces a mouse and controls the pointer on the screen
10: Which input device converts pen movements on its surface into digital signals?
- A) Keyboard
- B) Optical mouse
- C) Digitising tablet
- D) Trackball
Correct Answer: C) Digitising tablet
11: What is the primary function of a light pen?
- A) Capturing video
- B) Selecting objects on the screen
- C) Recording audio
- D) Scanning barcodes
Correct Answer: B) Selecting objects on the screen
12: How does a touch screen register input?
- A) By detecting changes in temperature
- B) By measuring sound waves
- C) By interrupting an infrared beam
- D) By detecting changes in pressure
Correct Answer: C) By interrupting an infrared beam
13: What type of device is a microphone classified as?
- A) Video input device
- B) Optical input device
- C) Audio input device
- D) Barcode reader
Correct Answer: C) Audio input device
14: Which device is commonly used for scanning documents into a digital format?
- A) Barcode reader
- B) Scanner
- C) Digital camera
- D) Light pen
Correct Answer: B) Scanner
15: What is the purpose of Optical Character Recognition (OCR)?
- A) To convert printed text into digital text
- B) To detect magnetic ink on cheques
- C) To scan barcodes
- D) To capture video footage
Correct Answer: A) To convert printed text into digital text
16: Which technology is used to read magnetic ink characters on cheques?
- A) OCR
- B) MICR
- C) OMR
- D) Barcode reader
Correct Answer: B) MICR
17: What does Optical Mark Recognition (OMR) primarily scan for?
- A) Printed text
- B) Audio signals
- C) Marks on paper
- D) Barcodes
Correct Answer: C) Marks on paper
18: Which device is used to capture video footage for a computer?
- A) Microphone
- B) Scanner
- C) Webcam
- D) Barcode reader
Correct Answer: C) Webcam
19: What type of device is commonly used in supermarkets to scan product labels?
- A) Optical character reader
- B) Hand-held scanner
- C) Barcode reader
- D) Touch screen
Correct Answer: C) Barcode reader
20: Which device uses light to create a digital image of a physical document?
- A) Video camera
- B) Digital camera
- C) Scanner
- D) Touch screen
Correct Answer: C) Scanner
21: Which device is used to produce physical printouts of data from a computer?
- A) Monitor
- B) Printer
- C) Speaker
- D) Projector
Correct Answer: B) Printer
22: What is the main advantage of laser printers over dot matrix printers?
- A) Lower cost
- B) Higher resolution and faster printing speed
- C) Capability to print in multiple colors
- D) Portability
Correct Answer: B) Higher resolution and faster printing speed
23: Which type of printer uses ink droplets sprayed onto paper?
- A) Dot matrix printer
- B) Daisy wheel printer
- C) Inkjet printer
- D) Laser printer
Correct Answer: C) Inkjet printer
24: What type of plotter uses pens that move horizontally while the paper rotates?
- A) Flatbed plotter
- B) Drum plotter
- C) Laser plotter
- D) Inkjet plotter
Correct Answer: B) Drum plotter
25: Which device is used for projecting computer information onto a large screen for presentations?
- A) Monitor
- B) Projector
- C) Plotter
- D) Microfiche reader
Correct Answer: B) Projector
26: What is the primary function of a microfilm?
- A) To project images
- B) To print text
- C) To store data in a compact, durable format
- D) To display visual content on a screen
Correct Answer: C) To store data in a compact, durable format
27: Which output device is used to produce audio output from a computer?
- A) Monitor
- B) Printer
- C) Speaker
- D) Plotter
Correct Answer: C) Speaker
28: Which type of monitor displays text and graphics using 256 colors simultaneously?
- A) Monochrome monitor
- B) CGA monitor
- C) SVGA monitor
- D) VGA monitor
Correct Answer: D) VGA monitor
29: What technology does an LCD monitor use?
- A) Cathode Ray Tube
- B) Light Emitting Diode
- C) Liquid Crystal Display
- D) Electroluminescent Display
Correct Answer: C) Liquid Crystal Display
30: Which type of terminal has inherent capabilities for both processing and storing data?
- A) Dumb terminal
- B) Smart terminal
- C) Intelligent terminal
- D) Visual Display Terminal
Correct Answer: C) Intelligent terminal
1.1.10 - Memory Unit: RAM, ROM, EPROM AND PROM.
31: What are the two primary types of memory in a computer?
- A) Primary and Secondary Memory
- B) RAM and ROM
- C) Cache and Main Memory
- D) DRAM and SRAM
Correct Answer: B) RAM and ROM
32: Which type of memory is used for long-term retention of data and programs?
- A) Primary memory
- B) Cache memory
- C) Secondary memory
- D) Virtual memory
Correct Answer: C) Secondary memory
33: What is the role of cache memory in a computer?
- A) To store data temporarily while the computer is in operation
- B) To speed up data access between the CPU and RAM
- C) To permanently store system files
- D) To provide a backup for main memory
Correct Answer: B) To speed up data access between the CPU and RAM
34: Where is cache memory typically located?
- A) On the hard disk
- B) On the motherboard, between the CPU and RAM
- C) Inside the RAM chips
- D) Within the power supply unit
Correct Answer: B) On the motherboard, between the CPU and RAM
35: Which levels of cache memory are commonly integrated within a CPU?
- A) L1 and L2 only
- B) L2 and L3 only
- C) L1, L2, and sometimes L3
- D) Only L3
Correct Answer: C) L1, L2, and sometimes L3
36: What is the size range typically associated with cache memory in modern computers?
- A) 1 MB to 16 MB
- B) 256 KB to 2 MB
- C) 4 GB to 16 GB
- D) 10 MB to 100 MB
Correct Answer: B) 256 KB to 2 MB
37: Which of the following statements about RAM is true?
- A) RAM is non-volatile and retains data when power is off
- B) RAM is used for permanent data storage
- C) RAM is volatile and loses data when power is off
- D) RAM only stores the operating system
Correct Answer: C) RAM is volatile and loses data when power is off
38: What is the primary purpose of ROM in a computer system?
- A) To store temporary files
- B) To provide quick access to frequently used data
- C) To store firmware and boot-up instructions
- D) To act as a substitute for RAM
Correct Answer: C) To store firmware and boot-up instructions
39: Which type of ROM can be erased by exposing it to ultraviolet light?
- A) PROM
- B) EPROM
- C) EEPROM
- D) Flash memory
Correct Answer: B) EPROM
40: How does EEPROM differ from traditional ROM?
- A) EEPROM can be rewritten electronically without removal from the computer
- B) EEPROM is faster than DRAM
- C) EEPROM uses magnetic storage
- D) EEPROM is only used for storing BIOS
Correct Answer: A) EEPROM can be rewritten electronically without removal from the computer
41: Which type of RAM requires constant refreshing to retain data?
- A) SRAM
- B) DRAM
- C) Flash memory
- D) ROM
Correct Answer: B) DRAM
42: Which RAM type is typically used in cache memory due to its speed?
- A) DRAM
- B) SRAM
- C) PROM
- D) Flash memory
Correct Answer: B) SRAM
43: What is flash memory primarily used for in modern electronic devices?
- A) To provide volatile storage
- B) To store BIOS and firmware permanently
- C) For fast, non-volatile data storage in portable devices
- D) As the main memory in desktop computers
Correct Answer: C) For fast, non-volatile data storage in portable devices
44: What is the purpose of the Power On Self Test (POST) stored in ROM?
- A) To check the system for viruses
- B) To verify hardware components are functioning properly
- C) To load the operating system into RAM
- D) To reset all system configurations
Correct Answer: B) To verify hardware components are functioning properly
45: Which of the following memory types is best suited for high-speed, frequently accessed data?
- A) DRAM
- B) Cache memory
- C) ROM
- D) Secondary memory
Correct Answer: B) Cache memory
1.1.11 - Flash Memory and Other Types of Memory.
46: What is Flash memory primarily used for?
- A) Temporary data storage
- B) Persistent storage that retains data without power
- C) Random access memory
- D) External memory only
Correct Answer: B) Persistent storage that retains data without power
47: Flash memory is a type of:
- A) RAM
- B) DRAM
- C) EEPROM
- D) ROM
Correct Answer: C) EEPROM
48: Which of the following statements is true about NOR Flash memory?
- A) It excels at sequential data access.
- B) It is faster for random data access than NAND Flash.
- C) It is primarily used for large data storage.
- D) It is not used in embedded systems.
Correct Answer: B) It is faster for random data access than NAND Flash.
49: Which of the following is a key feature of NAND Flash memory?
- A) High-speed random access
- B) Efficient for large data storage
- C) Erases data at the byte level
- D) Uses a parallel connection for memory cells
Correct Answer: B) Efficient for large data storage
50: The names 'NOR' and 'NAND' in Flash memory are derived from:
- A) The method of manufacturing the memory cells
- B) The way memory cells are connected, resembling NOR or NAND logic gates
- C) The speed of data access
- D) The capacity of data storage
Correct Answer: B) The way memory cells are connected, resembling NOR or NAND logic gates
51: Flash memory is commonly used in which of the following devices?
- A) CD-ROMs
- B) SSDs and USB drives
- C) Magnetic tape drives
- D) Floppy disks
Correct Answer: B) SSDs and USB drives
52: Which communication protocols are commonly used with Flash memory devices?
- A) USB and HDMI
- B) I2C and SPI
- C) SATA and IDE
- D) Ethernet and Wi-Fi
Correct Answer: B) I2C and SPI
53: What is the main advantage of SSDs over HDDs?
- A) SSDs have moving parts that provide better performance.
- B) SSDs are less durable than HDDs.
- C) SSDs offer faster data access and transfer speeds.
- D) SSDs use magnetic storage for higher capacity.
Correct Answer: C) SSDs offer faster data access and transfer speeds.
54: Which type of Flash memory is used for code storage and execution?
- A) NAND Flash
- B) NOR Flash
- C) DRAM
- D) SRAM
Correct Answer: B) NOR Flash
55: Which optical disc type can be rewritten multiple times?
- A) CD-ROM
- B) DVD-R
- C) CD-RW
- D) DVD-ROM
Correct Answer: C) CD-RW
56: Which type of memory loses its data when the power is turned off?
- A) Flash memory
- B) ROM
- C) RAM
- D) SSD
Correct Answer: C) RAM
57: How much data can a single-layer DVD-ROM typically store?
- A) 700 MB
- B) 4.7 GB
- C) 9.4 GB
- D) 17 GB
Correct Answer: B) 4.7 GB
58: Which storage device uses magnetic discs for data storage?
- A) SSD
- B) USB flash drive
- C) HDD
- D) CD-ROM
Correct Answer: C) HDD
59: The BIOS chip on a computer's motherboard is an example of:
- A) Volatile memory
- B) Flash memory
- C) Optical memory
- D) Secondary storage
Correct Answer: B) Flash memory
60: Which of the following is true about optical discs compared to magnetic discs?
- A) Optical discs have faster random access speed.
- B) Optical discs use laser technology for reading data.
- C) Optical discs have moving parts.
- D) Optical discs use magnetic fields to store data.
Correct Answer: B) Optical discs use laser technology for reading data.
61: What is the primary use of CD-ROM?
- A) Writing data multiple times
- B) Read-only storage for software and data distribution
- C) Storing operating systems
- D) Temporary storage of computer data
Correct Answer: B) Read-only storage for software and data distribution
62: Which of the following is a characteristic of Magneto-Optical Discs?
- A) They are only used for reading data.
- B) They are obsolete and have been replaced by CD-RW and DVD-R.
- C) They use a magnetic field to read data.
- D) They are commonly used in modern computers.
Correct Answer: B) They are obsolete and have been replaced by CD-RW and DVD-R.
63: Which type of storage device is known for its high storage capacity and use in centralised databases?
- A) Microcomputers
- B) Minicomputers
- C) Mainframe computers
- D) Supercomputers
Correct Answer: C) Mainframe computers
64: What is the main characteristic of fifth-generation computers?
- A) Use of vacuum tubes
- B) Use of microprocessors
- C) Ability to learn and self-organize
- D) High power consumption
Correct Answer: C) Ability to learn and self-organize
65: In which generation of computers were transistors first introduced?
- A) First generation
- B) Second generation
- C) Third generation
- D) Fourth generation
Correct Answer: B) Second generation
66: Which technology is used in the construction of third-generation computers?
- A) Vacuum tubes
- B) Transistors
- C) Integrated Circuits (ICs)
- D) Microprocessors
Correct Answer: C) Integrated Circuits (ICs)
67: What does EEPROM stand for?
- A) Electrically Erasable Programmable Read-Only Memory
- B) Electronically Erasable Permanent Read-Only Memory
- C) Electrically Erasable Programmed Read-Only Memory
- D) Electronically Erased Programmable Read-Only Memory
Correct Answer: A) Electrically Erasable Programmable Read-Only Memory
68: What is the primary use of Cache memory?
- A) Long-term data storage
- B) Enhancing processing speed by storing frequently accessed data
- C) Storing software programs
- D) Permanent data storage
Correct Answer: B) Enhancing processing speed by storing frequently accessed data
69: Which memory type is primarily used for temporary storage during processing?
- A) ROM
- B) Flash memory
- C) RAM
- D) SSD
Correct Answer: C) RAM
70: Which of the following statements about SSDs is true?
- A) SSDs use magnetic fields to store data.
- B) SSDs are typically slower than HDDs.
- C) SSDs have no moving parts and use Flash memory.
- D) SSDs are mainly used in optical storage.
Correct Answer: C) SSDs have no moving parts and use Flash memory.