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.331 In a CPU, what is the function of the Instruction Decoder?
A Interprets the opcode and generates control signals to execute it
B Fetches instructions from main memory
C Stores temporary data during ALU operations
D Coordinates data transfer between RAM and cache
Discuss / Board
Q.332 What is the primary difference between SRAM and DRAM?
A SRAM is faster and more expensive, but does not need refreshing; DRAM is slower, cheaper, and must be periodically refreshed
B SRAM is volatile, DRAM is non-volatile
C SRAM is used for secondary storage, DRAM for cache
D SRAM has higher density than DRAM
Discuss / Board
Q.333 In a computer system, a 64-bit data bus means:
A The CPU can transfer 64 bits of data simultaneously
B The addressable memory is 64 GB
C The processor runs at 64 GHz
D The system can only run 64-bit software
Discuss / Board
Q.334 What is the decimal equivalent of the hexadecimal number 2F?
A 47
B 45
C 50
D 35
Discuss / Board
Q.335 Which of the following stores the firmware required to start the computer?
A ROM BIOS
B RAM
C Hard Disk
D CPU Register
Discuss / Board
Q.336 In the context of memory hierarchy, which is the fastest memory type?
A CPU Registers
B L1 Cache
C L2 Cache
D RAM
Discuss / Board
Q.337 Which operation is NOT performed by the ALU?
A Instruction decoding
B Addition
C Logical AND
D Comparison
Discuss / Board
Q.338 Which generation of computers first used vacuum tubes?
A First generation
B Second generation
C Third generation
D Fourth generation
Discuss / Board
Q.339 Which type of computer is designed to perform a dedicated function and is embedded within a larger system?
A Embedded computer
B Mainframe
C Workstation
D Server
Discuss / Board
Q.340 Which port is primarily used to connect a monitor to a computer for high-definition video and audio over a single cable?
A HDMI
B VGA
C USB
D PS/2
Discuss / Board
Q.341 Which software translates an entire high-level language program into machine code before execution?
A Compiler
B Interpreter
C Assembler
D Linker
Discuss / Board
Q.342 Which of the following is an example of open-source software?
A LibreOffice
B Microsoft Office
C Adobe Photoshop
D Norton Antivirus
Discuss / Board
Q.343 Which device driver is essential for the operating system to interact with the hard disk?
A Storage controller driver
B Display driver
C Audio driver
D Network adapter driver
Discuss / Board
Q.344 A user hears a continuous beep during startup and the screen remains blank. Which component is most likely faulty?
A RAM
B Hard drive
C Network card
D Optical drive
Discuss / Board
Q.345 Which input device is used to capture hand-drawn designs directly onto a computer?
A Digitizer/Graphics tablet
B Scanner
C Light pen
D Touch screen
Discuss / Board
Q.346 Which type of printer is impact-based and commonly used for multi-part forms?
A Dot matrix printer
B Laser printer
C Inkjet printer
D Thermal printer
Discuss / Board
Q.347 In MS Word, how can you insert a section break to start a new section on the same page?
A Use a Continuous section break
B Use a Next Page section break
C Use a Page Break
D Use a Column Break
Discuss / Board
Q.348 What does the 'Format Painter' tool in MS Word do?
A Copies formatting from one text selection and applies it to another
B Applies a theme to the entire document
C Paints the background of the page
D Inserts a picture into the document
Discuss / Board
Q.349 Which feature in MS Word automatically generates a list of headings and page numbers?
A Table of Contents
B Index
C Bibliography
D Footnotes
Discuss / Board
Q.350 In MS Word, how can you protect a document so that users can only fill in form fields?
A Apply 'Filling in forms' editing restriction
B Set a password to open
C Mark as Final
D Enable Track Changes
Discuss / Board
Q.351 What is the shortcut to copy formatting in MS Word?
A Ctrl + Shift + C
B Ctrl + C
C Ctrl + Shift + V
D Ctrl + Alt + C
Discuss / Board
Q.352 In Excel, what does the function =XLOOKUP(A2, B:B, C:C) do if A2 matches a value in column B?
A Returns the corresponding value from column C
B Returns the position of A2 in column B
C Sums columns B and C
D Returns TRUE if the value is found
Discuss / Board
Q.353 Which Excel function returns the number of the row of a given cell reference?
A ROW()
B COLUMN()
C INDEX()
D MATCH()
Discuss / Board
Q.354 What is the result of the formula =TEXTJOIN(", ", TRUE, A1:A3) if A1='Apple', A2='', A3='Cherry'?
A Apple, Cherry
B Apple, , Cherry
C Apple Cherry
D Apple,,Cherry
Discuss / Board
Q.355 In Excel, which chart element shows the data values directly on the chart bars?
A Data labels
B Legend
C Axis title
D Gridlines
Discuss / Board
Q.356 Which Excel feature allows you to filter data by complex criteria and copy the results to another location?
A Advanced Filter
B AutoFilter
C Slicer
D Sort
Discuss / Board
Q.357 What does the status 'Thrashing' indicate in an operating system?
A The system spends more time swapping pages than executing processes
B A high-speed cache is failing
C The disk is severely fragmented
D The CPU is overheating
Discuss / Board
Q.358 Which Linux command is used to change file permissions?
A chmod
B chown
C ls -l
D mv
Discuss / Board
Q.359 What is the maximum partition size for a disk formatted with FAT32?
A 2 TB (theoretical) but Windows limits to 32 GB for creation
B 4 GB
C 16 TB
D 128 GB
Discuss / Board
Q.360 In Windows, which tool displays running processes and system performance?
A Task Manager
B Device Manager
C Event Viewer
D Disk Management
Discuss / Board

Master Computer set 1 for All Competitive Exams 2026

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