Computer set 2 MCQs

Practice interactive objective questions for this topic. Select an option to instantly verify your answer and read detailed explanations.

Showing 525 questions
Q.1 In a CPU, what is the purpose of the Floating Point Unit (FPU)?
A Performs arithmetic operations on decimal and exponential numbers
B Executes integer instructions
C Controls data flow between RAM and cache
D Decodes complex instruction sets
Discuss / Board
Q.2 Which component is known as the 'brain' of the computer?
A Central Processing Unit (CPU)
B Motherboard
C Random Access Memory (RAM)
D Hard Disk Drive (HDD)
Discuss / Board
Q.3 What is the main function of the Memory Management Unit (MMU) in a computer?
A Translates virtual addresses to physical addresses
B Caches frequently used data
C Manages disk read/write operations
D Allocates CPU time to processes
Discuss / Board
Q.4 In the context of computers, what does 'word size' refer to?
A The number of bits processed by the CPU in one clock cycle
B The length of a document in bytes
C The storage capacity of RAM
D The size of a monitor display
Discuss / Board
Q.5 Which of the following represents the correct hierarchy of memory from fastest to slowest?
A Registers → Cache → RAM → Hard Disk
B RAM → Registers → Cache → Hard Disk
C Cache → Registers → Hard Disk → RAM
D Hard Disk → RAM → Cache → Registers
Discuss / Board
Q.6 In a binary system, what is the maximum value representable by an 8-bit unsigned integer?
A 255
B 256
C 128
D 1024
Discuss / Board
Q.7 The process of converting raw data into meaningful information is called:
A Data processing
B Data encryption
C Data storage
D Data transmission
Discuss / Board
Q.8 Which type of firmware is used to initialize hardware during the booting process?
A BIOS/UEFI
B Device driver
C Operating system kernel
D Utility software
Discuss / Board
Q.9 In a computer, cache memory is typically made of which technology?
A SRAM (Static RAM)
B DRAM (Dynamic RAM)
C Flash memory
D Magnetic core
Discuss / Board
Q.10 How many bits are there in one byte?
A 8
B 4
C 16
D 32
Discuss / Board
Q.11 In the binary number system, which digits are used?
A 0 and 1
B 0 to 7
C 0 to 9
D 0 to F
Discuss / Board
Q.12 Which generation of computers saw the development of high-level programming languages like FORTRAN and COBOL?
A Second generation
B First generation
C Third generation
D Fourth generation
Discuss / Board
Q.13 Which of the following is a minicomputer?
A PDP-11
B IBM PC
C Cray-1
D ENIAC
Discuss / Board
Q.14 What is the main function of the motherboard chipset?
A Facilitates communication between CPU, memory, and peripheral devices
B Provides power to the CPU
C Stores the operating system
D Cools the system components
Discuss / Board
Q.15 Which peripheral device is used for playing games by detecting physical movement?
A Joystick
B Barcode reader
C Scanner
D Light pen
Discuss / Board
Q.16 Which port is commonly used to connect a keyboard and mouse to a modern computer?
A USB
B PS/2
C Serial
D Parallel
Discuss / Board
Q.17 Which of the following is an example of system software?
A Operating system
B Word processor
C Spreadsheet
D Web browser
Discuss / Board
Q.18 Which type of software allows users to perform specific tasks like creating documents or managing accounts?
A Application software
B System software
C Firmware
D Utility software
Discuss / Board
Q.19 Which of the following is a utility software used for disk maintenance?
A Disk Cleanup
B Microsoft Word
C Adobe Reader
D Google Chrome
Discuss / Board
Q.20 Linux is an example of which type of software?
A Open Source operating system
B Proprietary operating system
C Application software
D Utility software
Discuss / Board
Q.21 Microsoft Windows is an example of which type of software license?
A Proprietary
B Open Source
C Freeware
D Shareware
Discuss / Board
Q.22 Which software converts assembly language into machine code?
A Assembler
B Compiler
C Interpreter
D Linker
Discuss / Board
Q.23 A device driver acts as an intermediary between which two components?
A Operating system and hardware device
B Compiler and source code
C Browser and internet
D Keyboard and monitor
Discuss / Board
Q.24 Which architecture type is used in modern personal computers?
A Von Neumann architecture
B Harvard architecture
C RISC architecture only
D CISC architecture only
Discuss / Board
Q.25 When a computer suddenly restarts while working, what should you check first for hardware troubleshooting?
A Overheating or power supply issues
B Corrupted operating system files
C Virus infection
D Browser cache
Discuss / Board
Q.26 Which license allows software to be used for a trial period and then requires payment?
A Shareware
B Freeware
C Open Source
D Proprietary
Discuss / Board
Q.27 What is the function of an operating environment?
A Provides a platform for running application software and managing resources
B Compiles source code
C Designs websites
D Edits videos
Discuss / Board
Q.28 Which keyboard layout is most commonly used in India and the United States?
A QWERTY
B AZERTY
C DVORAK
D QWERTZ
Discuss / Board
Q.29 Which mouse technology uses a laser to track movement?
A Optical mouse
B Mechanical mouse
C Trackball
D Touchpad
Discuss / Board
Q.30 Which of the following is a handheld scanner used in retail?
A Barcode reader
B Flatbed scanner
C Sheetfed scanner
D Drum scanner
Discuss / Board

Master Computer set 2 for All Competitive Exams 2026

Practicing Computer set 2 MCQs is one of the most effective ways to prepare for competitive examinations in 2026. This topic-wise question bank contains carefully selected multiple-choice questions designed to strengthen conceptual understanding, improve accuracy, and enhance problem-solving speed. Our collection includes beginner, intermediate, and advanced-level questions frequently asked in JKSSB, SSC, Banking, Railway, Police, Defence, State PSC, and various national-level examinations. Every question is structured to reflect real exam patterns and helps candidates become familiar with objective-type assessment formats. Instant answer verification enables students to identify mistakes immediately and learn the correct approach without wasting valuable preparation time. Regular practice of topic-wise MCQs improves retention, reinforces key concepts, and develops confidence required to perform well under exam pressure. Whether you are revising important concepts, preparing for an upcoming recruitment test, or strengthening weak areas, these practice questions provide a reliable platform for continuous improvement. Consistent participation in MCQ-based learning sessions can significantly increase your chances of achieving higher scores and better ranks in competitive examinations.

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