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

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

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31 quizzes

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2026-08-19 02:47:01

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 UID: 21

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Category Name: Computer

Category Full Name: Computer

Category Link/Slug: computer

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Last Refreshed: 2026-08-19 02:47:01

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. Which of the following is the correct abbreviation of COMPUTER?
Q1. Which of the following is the correct abbreviation of COMPUTER?

(A) Commonly Oriented Machine Purposely Used for Technological and Environmental Research
(A) Commonly Oriented Machine Purposely Used for Technological and Environmental Research
(B) Commonly Oriented Machine Purposely Used for Technological and Educational Research
(B) Commonly Oriented Machine Purposely Used for Technological and Educational Research
(C) Commonly Operated Machine Purposely Used for Technological and Educational Research
(C) Commonly Operated Machine Purposely Used for Technological and Educational Research
(D) Commonly Operated Machine Purposely Used for Technological and Environmental Research
(D) Commonly Operated Machine Purposely Used for Technological and Environmental Research
Answer: (C) Commonly Operated Machine Purposely Used for Technological and Educational Research
Answer: (C) Commonly Operated Machine Purposely Used for Technological and Educational Research
The word "COMPUTER" is not an abbreviation itself, but rather a standalone word derived from the verb "compute." While some informal or contextual shortenings like "comp" might be used, there is no universally recognized or official abbreviation for "COMPUTER" in the same way that there are for terms like "e.g." or "Dr." Attempts to create an acronym for "COMPUTER" (e.g., "Common Operating Machine Purposely Used for Technical and Educational Research") are generally considered backronyms and not the origin or a true abbreviation of the word.
The word "COMPUTER" is not an abbreviation itself, but rather a standalone word derived from the verb "compute." While some informal or contextual shortenings like "comp" might be used, there is no universally recognized or official abbreviation for "COMPUTER" in the same way that there are for terms like "e.g." or "Dr." Attempts to create an acronym for "COMPUTER" (e.g., "Common Operating Machine Purposely Used for Technical and Educational Research") are generally considered backronyms and not the origin or a true abbreviation of the word.

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@2465

2025-06-19

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Q2. What is the term used to describe the process of converting data into a code that cannot be read or understood without a key?
Q2. 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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Q3. Which of the following monitor looks like a television and are normally used with non-portable computer systems?
Q3. 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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Q4. Which is called the brain of the computer?
Q4. Which is called the brain of the computer?

(A) Monitor
(A) Monitor
(B) RAM
(B) RAM
(C) ROM
(C) ROM
(D) CPU
(D) CPU
Answer: (D) CPU
Answer: (D) CPU
Central Processing Unit (CPU) or Processor.. The CPU is a microprocessor chip containing millions of tiny transistors. It's the CPU's job to perform the calculations necessary to make the computer work the transistors in the CPU manipulate the data.
Central Processing Unit (CPU) or Processor.. The CPU is a microprocessor chip containing millions of tiny transistors. It's the CPU's job to perform the calculations necessary to make the computer work the transistors in the CPU manipulate the data.

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@289

2024-03-03

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Q5. Who is the father of Computers?
Q5. 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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Q6. What is the primary function of a CPU?
Q6. 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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Q7. What is the purpose of a firewall in a computer network?
Q7. What is the purpose of a firewall in a computer network?

(A) To increase internet speed
(A) To increase internet speed
(B) To store data
(B) To store data
(C) To protect against unauthorized access
(C) To protect against unauthorized access
(D) To provide wireless connectivity
(D) To provide wireless connectivity
Answer: (C) To protect against unauthorized access
Answer: (C) To protect against unauthorized access
A firewall is a security system that monitors and controls network traffic. It acts as a barrier between a trusted network (e.g., your home or office network) and an untrusted network (e.g., the internet). Firewalls help prevent unauthorized access to your network.
A firewall is a security system that monitors and controls network traffic. It acts as a barrier between a trusted network (e.g., your home or office network) and an untrusted network (e.g., the internet). Firewalls help prevent unauthorized access to your network.

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@1485

2024-08-16

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Q8. What is the smallest unit of data in a computer?
Q8. 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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@288

2024-03-03

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Q9. Which of the following is not an operating system for Computers?
Q9. Which of the following is not an operating system for Computers?

(A) Windows 11
(A) Windows 11
(B) Linux
(B) Linux
(C) Microsoft Office
(C) Microsoft Office
(D) Ubuntu
(D) Ubuntu
Answer: (C) Microsoft Office
Answer: (C) Microsoft Office
Microsoft Office, or simply Office, is a family of client software, server software, and services developed by Microsoft.
Microsoft Office, or simply Office, is a family of client software, server software, and services developed by Microsoft.

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@985

2024-04-11

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Q10. Which of the following is not a type of computer code?
Q10. 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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Q11. What is the function of a computer's motherboard?
Q11. What is the function of a computer's motherboard?

(A) To store data
(A) To store data
(B) To connect the CPU to other components
(B) To connect the CPU to other components
(C) To process instructions
(C) To process instructions
(D) To display graphics
(D) To display graphics
Answer: (B) To connect the CPU to other components
Answer: (B) To connect the CPU to other components
A computer's motherboard is the main circuit board that connects and powers all of the computer's internal components and allows them to communicate with each other. The motherboard is the central hub that connects all of the computer's hardware components, including the CPU, GPU, RAM, storage devices, and peripherals.
A computer's motherboard is the main circuit board that connects and powers all of the computer's internal components and allows them to communicate with each other. The motherboard is the central hub that connects all of the computer's hardware components, including the CPU, GPU, RAM, storage devices, and peripherals.

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@1588

2024-09-08

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Q12. Which of the following is the brain of the computer?
Q12. 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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Q13. Which of the following computer language is written in binary codes only?
Q13. 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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2025-06-19

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Q14. Which of the following is not a type of computer code?
Q14. Which of the following is not a type of computer code?

(A) Source code
(A) Source code
(B) Object code
(B) Object code
(C) Machine code
(C) Machine code
(D) Design code
(D) Design code
Answer: (D) Design code
Answer: (D) Design code
Computer code refers to the instructions that a computer can understand and execute. Source code is human-readable code written by programmers using a high-level programming language (e.g., Python, Java, C++).Object code is the output of a compiler after translating source code into machine-readable instructions, but it's not yet executable on its own and often needs to be linked with other object files. Machine code is the lowest-level programming language, directly executable by a computer's CPU. It consists of binary instructions (0s and 1s).Bytecode is an intermediate form of code that is typically executed by a virtual machine (like the Java Virtual Machine). It's platform-independent.
Computer code refers to the instructions that a computer can understand and execute. Source code is human-readable code written by programmers using a high-level programming language (e.g., Python, Java, C++).Object code is the output of a compiler after translating source code into machine-readable instructions, but it's not yet executable on its own and often needs to be linked with other object files. Machine code is the lowest-level programming language, directly executable by a computer's CPU. It consists of binary instructions (0s and 1s).Bytecode is an intermediate form of code that is typically executed by a virtual machine (like the Java Virtual Machine). It's platform-independent.

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@2473

2025-06-19

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Q15. What is the term used to describe the process of converting digital data into a format that can be transmitted over a network?
Q15. 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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Q16. What is the software that manages the hardware and software resources of a computer system?
Q16. What is the software that manages the hardware and software resources of a computer system?

(A) Application software
(A) Application software
(B) Operating system
(B) Operating system
(C) Utility software
(C) Utility software
(D) Programming software
(D) Programming software
Answer: (B) Operating system
Answer: (B) Operating system
The operating system (OS) is the core software that manages the computer's hardware and software resources. It provides a platform for other applications to run. Common examples of operating systems include Windows, macOS, and Linux.
The operating system (OS) is the core software that manages the computer's hardware and software resources. It provides a platform for other applications to run. Common examples of operating systems include Windows, macOS, and Linux.

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2024-08-16

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Q17. What is the purpose of the BIOS in a computer?
Q17. 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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2024-09-08

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Q18. What is the difference between RAM and ROM?
Q18. 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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Q19. What does BIOS stands for in computer?
Q19. 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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2024-08-03

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Q20. Which of the following is a common input device used in computers?
Q20. 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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2024-08-16

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