Computer (Computer) | 21+ MCQ Quizzes | Category (S/R/A) - SPPMMC

Computer (Computer) | MCQ Quizzes | Category (S/R/A)

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31 quizzes

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2026-03-20 06:55:14

A computer is an electronic device capable of processing information with incredible speed and accuracy. It consists of hardware components like the CPU, memory, and storage, as well as software that instructs it. From personal computers to powerful servers, these machines have revolutionized how we communicate, learn, work, and entertain. Computers process data, perform calculations, and store information, making them indispensable tools in virtually every field.
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Category Name: Computer

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Category Description: Computers: A Brief Overview A computer is an electronic device capable of processing data according to instructions given to it. This processing involves inputting data, storing it, manipulating it, and producing output. Key Components: * Hardware: The physical components of a computer, including the central processing unit (CPU), memory, storage devices, input/output devices, and peripherals. * Software: The intangible programs and applications that instruct the hardware to perform specific tasks. This includes operating systems, software applications, and programming languages. How Computers Work: * Input: Data is entered into the computer through devices like keyboards, mice, scanners, or digital cameras. * Processing: The CPU interprets and executes instructions from software, performing calculations and making decisions. * Storage: Data is saved on storage devices such as hard drives, solid-state drives, or external drives for later use. * Output: Processed data is displayed on monitors, printed on paper, or sent to other devices as output. Types of Computers: * Personal Computers (PCs): Desktop and laptop computers for individual use. * Servers: Powerful computers that manage networks and share resources. * Supercomputers: Extremely powerful computers used for complex calculations and simulations. * Mainframes: Large computers capable of handling massive amounts of data. * Embedded Computers: Computers integrated into other devices like smartphones, cars, and appliances. Impact of Computers: Computers have revolutionized society, transforming industries, education, communication, and entertainment. They have increased efficiency, accuracy, and speed in various fields. However, their widespread use also raises concerns about privacy, security, and dependence. Computers continue to evolve rapidly, with advancements in artificial intelligence, quantum computing, and other technologies promising to shape the future.

Q1. From the following list identify the hardware component that can be used to transfer files from one computer to another.
Q1. From the following list identify the hardware component that can be used to transfer files from one computer to another.

(A) BIOS
(A) BIOS
(B) Hard Disk
(B) Hard Disk
(C) CPU
(C) CPU
(D) USB Flash Drive
(D) USB Flash Drive
Answer: (D) USB Flash Drive
Answer: (D) USB Flash Drive
USB drives are commonly used for storage, data backup, and transferring files between devices. USB drives come in multiple storage capacities and different ports, each having a unique shape. Using a USB drive can differ depending on the type of computer that you want to connect to. A typical USB drive is removable, rewritable, and smaller than an optical disc.
USB drives are commonly used for storage, data backup, and transferring files between devices. USB drives come in multiple storage capacities and different ports, each having a unique shape. Using a USB drive can differ depending on the type of computer that you want to connect to. A typical USB drive is removable, rewritable, and smaller than an optical disc.

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@1061

2024-04-27

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Q2. Which of the following is the brain of the computer?
Q2. Which of the following is the brain of the computer?

(A) Arithmetic and Logic unit
(A) Arithmetic and Logic unit
(B) Control unit
(B) Control unit
(C) Graphics Processing Unit
(C) Graphics Processing Unit
(D) Central Processing Unit
(D) Central Processing Unit
Answer: (D) Central Processing Unit
Answer: (D) Central Processing Unit
The Central Processing Unit (CPU) is widely known as the "brain" of the computer because it is responsible for executing instructions, performing arithmetic and logical operations, and controlling the overall flow of data and instructions within the computer system. It processes all the instructions from the software and hardware and manages the basic operations of the computer.
The Central Processing Unit (CPU) is widely known as the "brain" of the computer because it is responsible for executing instructions, performing arithmetic and logical operations, and controlling the overall flow of data and instructions within the computer system. It processes all the instructions from the software and hardware and manages the basic operations of the computer.

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@2469

2025-06-19

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Q3. What does BIOS stands for in computer?
Q3. What does BIOS stands for in computer?

(A) Built In Ordered Setup
(A) Built In Ordered Setup
(B) Binary Into On Settings
(B) Binary Into On Settings
(C) Basic Input output System
(C) Basic Input output System
(D) Boot Internal Offset System
(D) Boot Internal Offset System
Answer: (C) Basic Input output System
Answer: (C) Basic Input output System
Basic Input/output System
In computing, BIOS stands for Basic Input/Output System, also known as the System BIOS, ROM BIOS, BIOS ROM or PC BIOS, is firmware used to provide runtime services for operating systems and programs and to perform hardware initialization during the booting process (power-on startup).
Basic Input/output System
In computing, BIOS stands for Basic Input/Output System, also known as the System BIOS, ROM BIOS, BIOS ROM or PC BIOS, is firmware used to provide runtime services for operating systems and programs and to perform hardware initialization during the booting process (power-on startup).

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@55

2024-08-03

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Q4. Which of the following is a common input device used in computers?
Q4. Which of the following is a common input device used in computers?

(A) Monitor
(A) Monitor
(B) Printer
(B) Printer
(C) Keyboard
(C) Keyboard
(D) Speaker
(D) Speaker
Answer: (C) Keyboard
Answer: (C) Keyboard
A keyboard is an input device used to enter data into a computer. It typically has keys representing letters, numbers, symbols, and punctuation.
A keyboard is an input device used to enter data into a computer. It typically has keys representing letters, numbers, symbols, and punctuation.

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@1482

2024-08-16

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Q5. What is the difference between RAM and ROM?
Q5. What is the difference between RAM and ROM?

(A) RAM is permanent storage, while ROM is temporary storage.
(A) RAM is permanent storage, while ROM is temporary storage.
(B) RAM is volatile memory, while ROM is non-volatile memory
(B) RAM is volatile memory, while ROM is non-volatile memory
(C) RAM is used for long-term storage, while ROM is used for temporary storage.
(C) RAM is used for long-term storage, while ROM is used for temporary storage.
(D) RAM can only read data, while ROM can both read and write data.
(D) RAM can only read data, while ROM can both read and write data.
Answer: (B) RAM is volatile memory, while ROM is non-volatile memory
Answer: (B) RAM is volatile memory, while ROM is non-volatile memory
RAM is volatile (loses data when power is off) while ROM is non-volatile (retains data).
RAM is volatile (loses data when power is off) while ROM is non-volatile (retains data).

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@2277

2025-01-30

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Q6. Who is the father of Computers?
Q6. Who is the father of Computers?

(A) James Gosling
(A) James Gosling
(B) Dennis Ritchie
(B) Dennis Ritchie
(C) Bjarne Stroustrup
(C) Bjarne Stroustrup
(D) Charles Babbage
(D) Charles Babbage
Answer: (D) Charles Babbage
Answer: (D) Charles Babbage
Charles Babbage was an English mathematician, philosopher, inventor, and mechanical engineer who designed the Difference Engine and, more importantly, the Analytical Engine. The Analytical Engine is considered the conceptual forerunner of the modern digital computer, incorporating features like an Arithmetic Logic Unit (ALU), basic flow control, and integrated memory, which are fundamental to today's computers. Although it was never fully built in his lifetime, his detailed designs and theoretical work laid the foundational principles for future computer development.
Charles Babbage was an English mathematician, philosopher, inventor, and mechanical engineer who designed the Difference Engine and, more importantly, the Analytical Engine. The Analytical Engine is considered the conceptual forerunner of the modern digital computer, incorporating features like an Arithmetic Logic Unit (ALU), basic flow control, and integrated memory, which are fundamental to today's computers. Although it was never fully built in his lifetime, his detailed designs and theoretical work laid the foundational principles for future computer development.

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@2464

2025-06-19

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Q7. What is the term used to describe the process of converting digital data into a format that can be transmitted over a network?
Q7. What is the term used to describe the process of converting digital data into a format that can be transmitted over a network?

(A) Encoding
(A) Encoding
(B) Decoding
(B) Decoding
(C) Encrypting
(C) Encrypting
(D) Decrypting
(D) Decrypting
Answer: (A) Encoding
Answer: (A) Encoding
Encoding is the process of converting digital data into a specific format that can be transmitted over a network. This format is often used to ensure compatibility between different devices and systems.
Encoding is the process of converting digital data into a specific format that can be transmitted over a network. This format is often used to ensure compatibility between different devices and systems.

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@1487

2024-08-16

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Q8. Which of the following language does the computer understand?
Q8. Which of the following language does the computer understand?

(A) High-level language
(A) High-level language
(B) Assembly language
(B) Assembly language
(C) Machine language
(C) Machine language
(D) Natural language
(D) Natural language
Answer: (C) Machine language
Answer: (C) Machine language
Computers fundamentally understand machine language, which is composed of binary code (sequences of 0s and 1s). Every instruction and piece of data that a computer processes must ultimately be converted into this binary format. While programmers write in high-level languages (like Python or Java) or even assembly language, these languages must be translated (compiled or interpreted) into machine language before the computer's Central Processing Unit (CPU) can execute them. Natural languages are too complex and ambiguous for direct computer understanding without sophisticated artificial intelligence processing.
Computers fundamentally understand machine language, which is composed of binary code (sequences of 0s and 1s). Every instruction and piece of data that a computer processes must ultimately be converted into this binary format. While programmers write in high-level languages (like Python or Java) or even assembly language, these languages must be translated (compiled or interpreted) into machine language before the computer's Central Processing Unit (CPU) can execute them. Natural languages are too complex and ambiguous for direct computer understanding without sophisticated artificial intelligence processing.

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@2467

2025-06-19

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Q9. What is the purpose of a cache memory in a CPU?
Q9. What is the purpose of a cache memory in a CPU?

(A) To store data permanently
(A) To store data permanently
(B) To connect the CPU to other components
(B) To connect the CPU to other components
(C) To speed up data access for the CPU
(C) To speed up data access for the CPU
(D) To display graphics
(D) To display graphics
Answer: (C) To speed up data access for the CPU
Answer: (C) To speed up data access for the CPU
Cache memory is a small, high-speed memory component located within the CPU. Its primary purpose is to significantly speed up the CPU's access to frequently used data and instructions.
Cache memory is a small, high-speed memory component located within the CPU. Its primary purpose is to significantly speed up the CPU's access to frequently used data and instructions.

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@2280

2025-01-30

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Q10. What is the primary function of a CPU?
Q10. What is the primary function of a CPU?

(A) Store data permanently
(A) Store data permanently
(B) Display information on a screen
(B) Display information on a screen
(C) Execute instructions and perform calculations
(C) Execute instructions and perform calculations
(D) Manage input and output devices
(D) Manage input and output devices
Answer: (C) Execute instructions and perform calculations
Answer: (C) Execute instructions and perform calculations
The CPU, or Central Processing Unit, is the "brain" of the computer. It carries out commands and processes data.
The CPU, or Central Processing Unit, is the "brain" of the computer. It carries out commands and processes data.

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@1478

2024-08-16

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Q11. What is the full form of CPU?
Q11. What is the full form of CPU?

(A) Central Power Unit
(A) Central Power Unit
(B) Central Processing Unit
(B) Central Processing Unit
(C) Computer Personal Unit
(C) Computer Personal Unit
(D) Core Performance Unit
(D) Core Performance Unit
Answer: (B) Central Processing Unit
Answer: (B) Central Processing Unit
CPU stands for Central Processing Unit. It is often referred to as the "brain" of the computer because it is the primary component that performs most of the processing inside a computer. Its main function is to execute instructions, perform arithmetic and logical operations, and manage the overall flow of data and instructions within the computer system.
CPU stands for Central Processing Unit. It is often referred to as the "brain" of the computer because it is the primary component that performs most of the processing inside a computer. Its main function is to execute instructions, perform arithmetic and logical operations, and manage the overall flow of data and instructions within the computer system.

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@2466

2025-06-19

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Q12. What is the term used to describe the process of converting data into a code that cannot be read or understood without a key?
Q12. What is the term used to describe the process of converting data into a code that cannot be read or understood without a key?

(A) Encoding
(A) Encoding
(B) Decoding
(B) Decoding
(C) Encrypting
(C) Encrypting
(D) Decrypting
(D) Decrypting
Answer: (C) Encrypting
Answer: (C) Encrypting
Encrypting is the process of converting data into a code that cannot be read or understood without a key. This is done to protect sensitive information from unauthorized access.
Encrypting is the process of converting data into a code that cannot be read or understood without a key. This is done to protect sensitive information from unauthorized access.

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@1488

2024-08-16

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Q13. Which of the following is not a type of computer code?
Q13. Which of the following is not a type of computer code?

(A) EDIC
(A) EDIC
(B) ASCII
(B) ASCII
(C) BCD
(C) BCD
(D) EBCDIC
(D) EBCDIC
Answer: (A) EDIC
Answer: (A) EDIC
The options listed are related to character encoding schemes, which are methods of representing text characters in computers. ASCII (American Standard Code for Information Interchange) is a widely used character encoding standard that represents text in computers, telecommunications equipment, and other devices. BCD (Binary-Coded Decimal) is a method of encoding decimal numbers where each decimal digit is represented by its own binary sequence. While primarily for numbers, it's a form of data representation or "code." EBCDIC (Extended Binary Coded Decimal Interchange Code) is another character encoding standard, primarily used on IBM mainframe operating systems.
The options listed are related to character encoding schemes, which are methods of representing text characters in computers. ASCII (American Standard Code for Information Interchange) is a widely used character encoding standard that represents text in computers, telecommunications equipment, and other devices. BCD (Binary-Coded Decimal) is a method of encoding decimal numbers where each decimal digit is represented by its own binary sequence. While primarily for numbers, it's a form of data representation or "code." EBCDIC (Extended Binary Coded Decimal Interchange Code) is another character encoding standard, primarily used on IBM mainframe operating systems.

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@2474

2025-06-19

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Q14. Which of the following computer language is written in binary codes only?
Q14. Which of the following computer language is written in binary codes only?

(A) Assembly Language
(A) Assembly Language
(B) High-level Language
(B) High-level Language
(C) Machine Language
(C) Machine Language
(D) C
(D) C
Answer: (C) Machine Language
Answer: (C) Machine Language
Machine language is the only computer language that is directly written and understood in binary codes (sequences of 0s and 1s). It is the lowest-level programming language and is specific to the computer's architecture. Every instruction that the CPU executes is in machine code. Assembly language uses mnemonics to represent machine code instructions, making it slightly more human-readable than raw binary, but it still requires an assembler to translate it into machine code. High-level languages are much more abstract and human-readable, requiring compilers or interpreters to translate them into machine code before execution.
Machine language is the only computer language that is directly written and understood in binary codes (sequences of 0s and 1s). It is the lowest-level programming language and is specific to the computer's architecture. Every instruction that the CPU executes is in machine code. Assembly language uses mnemonics to represent machine code instructions, making it slightly more human-readable than raw binary, but it still requires an assembler to translate it into machine code. High-level languages are much more abstract and human-readable, requiring compilers or interpreters to translate them into machine code before execution.

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@2468

2025-06-19

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Q15. Which of the following is not a characteristic of a computer?
Q15. Which of the following is not a characteristic of a computer?

(A) Versatility
(A) Versatility
(B) Accuracy
(B) Accuracy
(C) Diligence
(C) Diligence
(D) Intelligence
(D) Intelligence
Answer: (D) Intelligence
Answer: (D) Intelligence
While computers can process vast amounts of data and execute complex algorithms to simulate intelligence (Artificial Intelligence), they do not possess inherent intelligence, intuition, or the ability to think, reason, or make decisions based on emotion or consciousness like humans do. Their "intelligence" is derived from the programs and data they are fed.
While computers can process vast amounts of data and execute complex algorithms to simulate intelligence (Artificial Intelligence), they do not possess inherent intelligence, intuition, or the ability to think, reason, or make decisions based on emotion or consciousness like humans do. Their "intelligence" is derived from the programs and data they are fed.

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@2470

2025-06-19

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Q16. Which of the following monitor looks like a television and are normally used with non-portable computer systems?
Q16. Which of the following monitor looks like a television and are normally used with non-portable computer systems?

(A) LED monitor
(A) LED monitor
(B) LCD monitor
(B) LCD monitor
(C) CRT monitor
(C) CRT monitor
(D) OLED monitor
(D) OLED monitor
Answer: (C) CRT monitor
Answer: (C) CRT monitor
A CRT (Cathode Ray Tube) monitor is a type of display technology that was widely used in older computer systems and televisions. They are characterized by their bulky, heavy design, which resembles traditional TV sets. These monitors use an electron gun to project a beam onto a phosphorescent screen, creating images. Due to their size and weight, CRT monitors are typically used with non-portable computer systems (desktops) and are not suitable for laptops or other mobile devices. Modern display technologies like LCD, LED, and OLED monitors are much thinner, lighter, and more energy-efficient.
A CRT (Cathode Ray Tube) monitor is a type of display technology that was widely used in older computer systems and televisions. They are characterized by their bulky, heavy design, which resembles traditional TV sets. These monitors use an electron gun to project a beam onto a phosphorescent screen, creating images. Due to their size and weight, CRT monitors are typically used with non-portable computer systems (desktops) and are not suitable for laptops or other mobile devices. Modern display technologies like LCD, LED, and OLED monitors are much thinner, lighter, and more energy-efficient.

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@2472

2025-06-19

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Q17. What is the smallest unit of data in a computer?
Q17. What is the smallest unit of data in a computer?

(A) Byte
(A) Byte
(B) Bit
(B) Bit
(C) KB
(C) KB
(D) MB
(D) MB
Answer: (B) Bit
Answer: (B) Bit
Bit (Binary Digit) Bit is the smallest unit of data in a computer. In bynary units of measurement - 4 Bit = 1 Nibble; 8 Bit = 1 Byte; 1024 Byte = 1 Kibibyte (KiB); 1024 Kibibyte = 1 Mebibyte (MiB); 1024 Mebibyte = Gibibyte (GiB); 1024 Gibibyte = 1 Tebibyte (TiB); 1024 Tebibyte = 1 Pebibyte (PiB); and so on. In decimal units of measurement - 1000 Byte = 1 Kilobyte (KB); 1000 Kilobyte = 1 Megabyte (MB); 1000 Megabyte = Gigabyte (GB); 1000 Gigabyte = 1 Terabyte (TB); 1000 Terabyte = 1 Petabyte (PB); and so on.
Bit (Binary Digit) Bit is the smallest unit of data in a computer. In bynary units of measurement - 4 Bit = 1 Nibble; 8 Bit = 1 Byte; 1024 Byte = 1 Kibibyte (KiB); 1024 Kibibyte = 1 Mebibyte (MiB); 1024 Mebibyte = Gibibyte (GiB); 1024 Gibibyte = 1 Tebibyte (TiB); 1024 Tebibyte = 1 Pebibyte (PiB); and so on. In decimal units of measurement - 1000 Byte = 1 Kilobyte (KB); 1000 Kilobyte = 1 Megabyte (MB); 1000 Megabyte = Gigabyte (GB); 1000 Gigabyte = 1 Terabyte (TB); 1000 Terabyte = 1 Petabyte (PB); and so on.

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2024-03-03

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Q18. What is the primary function of RAM?
Q18. What is the primary function of RAM?

(A) Stores data permanently
(A) Stores data permanently
(B) Temporarily stores data for immediate use
(B) Temporarily stores data for immediate use
(C) Controls the flow of electricity in a computer
(C) Controls the flow of electricity in a computer
(D) Interprets and executes instructions
(D) Interprets and executes instructions
Answer: (B) Temporarily stores data for immediate use
Answer: (B) Temporarily stores data for immediate use
RAM (Random Access Memory) is a type of computer memory that stores data temporarily while the computer is running. It is used to hold data that the CPU needs to access quickly, such as programs and data being used by applications.
RAM (Random Access Memory) is a type of computer memory that stores data temporarily while the computer is running. It is used to hold data that the CPU needs to access quickly, such as programs and data being used by applications.

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@1479

2024-08-16

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Q19. What is the purpose of the BIOS in a computer?
Q19. What is the purpose of the BIOS in a computer?

(A) To store data permanently
(A) To store data permanently
(B) To connect the CPU to other components
(B) To connect the CPU to other components
(C) To manage hardware resources
(C) To manage hardware resources
(D) To Initialize the computer's hardware
(D) To Initialize the computer's hardware
Answer: (D) To Initialize the computer's hardware
Answer: (D) To Initialize the computer's hardware
The BIOS (Basic Input/Output System) is a firmware program embedded in a computer's motherboard. Its primary function is to initialize the computer's hardware components when it is first turned on. It checks the system's configuration, tests the components, and loads the operating system into memory.
The BIOS (Basic Input/Output System) is a firmware program embedded in a computer's motherboard. Its primary function is to initialize the computer's hardware components when it is first turned on. It checks the system's configuration, tests the components, and loads the operating system into memory.

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@1589

2024-09-08

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Q20. What is the primary function of a search engine?
Q20. What is the primary function of a search engine?

(A) To create websites
(A) To create websites
(B) To store data
(B) To store data
(C) To index and retrieve information from the web
(C) To index and retrieve information from the web
(D) To provide wireless connectivity
(D) To provide wireless connectivity
Answer: (C) To index and retrieve information from the web
Answer: (C) To index and retrieve information from the web
A search engine is a software application that helps users find information on the internet. It works by indexing web pages and then retrieving relevant results based on user queries.
A search engine is a software application that helps users find information on the internet. It works by indexing web pages and then retrieving relevant results based on user queries.

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@1486

2024-08-16

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