Computer set 1 MCQs

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

Showing 603 questions
Q.1 Which component directly addresses the Von Neumann bottleneck in modern computer architecture?
A ALU
B Cache memory
C Hard drive
D Motherboard
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Q.2 In binary arithmetic, what is the practical effect of an arithmetic shift left operation?
A Divides the number by 2
B Multiplies the number by 2
C Inverts all bits
D Adds a parity bit
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Q.3 What is the primary architectural difference between SRAM and DRAM?
A SRAM uses flip-flops while DRAM uses capacitors
B SRAM uses magnetic platters while DRAM uses flash
C SRAM requires constant refreshing while DRAM does not
D SRAM is non-volatile while DRAM is volatile
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Q.4 Which encoding scheme uses variable-length encoding to represent Unicode characters natively?
A ASCII
B EBCDIC
C UTF-8
D BCD
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Q.5 What is the primary role of the Control Unit during the execute cycle?
A Performs mathematical calculations
B Generates timing and control signals
C Stores final outputs
D Translates high-level code
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Q.6 Which firmware interface was designed to replace legacy BIOS and supports Secure Boot?
A CMOS
B ACPI
C UEFI
D POST
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Q.7 In floating-point number representation, what does the mantissa signify?
A The exponent multiplier
B The sign of the number
C The significant digits or precision
D The base value
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Q.8 What is the primary function of a parity bit in data transmission?
A Compresses the payload
B Encrypts the datagram
C Detects single-bit transmission errors
D Routes the packet
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Q.9 Which memory mapping technique allows a block of main memory to be mapped to any available cache line?
A Direct mapping
B Set-associative mapping
C Fully associative mapping
D Virtual mapping
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Q.10 What does the performance metric FLOPS specifically measure?
A File loading operations per second
B Floating-point operations per second
C Fast logic outputs per second
D Frequency limits of processor sockets
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Q.11 In CPU architecture, what does instruction pipelining accomplish?
A Overlaps the execution of multiple instructions
B Stores instructions on the hard drive
C Converts analog signals to digital
D Bypasses the ALU entirely
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Q.12 Which software translation phase involves creating a parse tree or syntax tree?
A Lexical analysis
B Syntax analysis
C Semantic analysis
D Code optimization
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Q.13 What is the primary function of a linker in software development?
A Translates code into machine language
B Combines object modules into a single executable
C Loads the program into RAM
D Debugs syntax errors
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Q.14 Which operating system architecture runs only essential services in kernel space and the rest in user space?
A Monolithic kernel
B Hybrid kernel
C Microkernel
D Exokernel
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Q.15 What distinguishes a Type 1 hypervisor from a Type 2 hypervisor?
A Type 1 runs on a host OS, Type 2 runs on hardware
B Type 1 runs directly on hardware, Type 2 runs on a host OS
C Type 1 only virtualizes storage, Type 2 virtualizes networks
D Type 1 is open-source, Type 2 is proprietary
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Q.16 Under which open-source license are derivative works strictly required to be released under the same license terms?
A MIT License
B Apache License 2.0
C GNU General Public License
D BSD License
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Q.17 What is the defining characteristic of a Hard Real-Time Operating System?
A It uses the maximum amount of RAM possible
B Missing a processing deadline causes total system failure
C It only functions on solid-state drives
D It focuses on graphical user interface speed
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Q.18 Which mechanism allows peripheral devices to directly transfer data to memory without constant CPU intervention?
A Interrupt Request
B Direct Memory Access
C Polling loop
D Programmed I/O
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Q.19 What is thrashing in the context of virtual memory management?
A Overclocking the CPU to prevent lag
B Excessive page swapping that degrades system performance
C Deleting temporary files aggressively
D Defragmenting the hard drive sectors
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Q.20 Which motherboard component temporarily holds BIOS configuration settings and relies on a small battery?
A ROM chip
B EEPROM
C CMOS RAM
D Northbridge
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Q.21 What is the specific purpose of a cross-compiler?
A To translate code between different high-level languages
B To generate executable code for a platform different from the host
C To convert assembly code directly to binary
D To debug logic errors across multiple source files
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Q.22 Why do device drivers typically operate in kernel mode instead of user mode?
A To reduce the file size of the driver
B To gain direct unrestricted access to hardware registers
C To interact exclusively with the GUI
D To avoid utilizing RAM
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Q.23 In an interrupt-driven system, how does the CPU identify which specific device issued the interrupt?
A By executing a polling loop on all ports
B By receiving an interrupt vector from the controller
C By resetting the system bus
D By checking the system clock
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Q.24 Which printing technology relies on a laser beam to selectively alter the electrical charge on a rotating drum?
A Inkjet printer
B Thermal printer
C Laser printer
D Dot-matrix printer
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Q.25 What is the functional difference between VSYNC and HSYNC in monitor displays?
A VSYNC synchronizes color, HSYNC synchronizes brightness
B VSYNC controls vertical refresh, HSYNC controls horizontal lines
C VSYNC is for audio, HSYNC is for video
D VSYNC powers the backlight, HSYNC powers the panel
Discuss / Board
Q.26 Which input technology registers a touch by measuring the disturbance in an electrostatic field caused by a human finger?
A Resistive touch screen
B Infrared grid
C Capacitive touch screen
D Surface acoustic wave
Discuss / Board
Q.27 What is the primary purpose of rasterization in graphics rendering?
A Converting vector graphics into a grid of pixels
B Compressing image file sizes
C Applying anti-aliasing to 3D models
D Upscaling low-resolution videos
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Q.28 Which specialized I/O technology is heavily utilized by the banking sector to securely process cheque routing numbers?
A OMR
B OCR
C MICR
D Barcode Reader
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Q.29 How does a traditional pen plotter fundamentally differ from a standard inkjet printer?
A Plotters can only print in black and white
B Plotters draw continuous lines using vector data
C Plotters are significantly faster at text printing
D Plotters use thermal heat to burn images
Discuss / Board
Q.30 What does the DPI specification primarily indicate for a flatbed scanner?
A Data Processing Intervals
B Optical resolution and image clarity
C The scanning speed per page
D The color depth palette
Discuss / Board

Master Computer set 1 for All Competitive Exams 2026

Practicing Computer set 1 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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