Computer Mcqs-Most Repeated Mcqs

What does OCR stand for?

• A. Optical Character Recognition
• B. Optical Code Reader
• C. Optical Chip Recorder
• D. Output Code Recognition

Which device reads preprinted characters and converts them to digital code?

• A. OCR
• B. MICR
• C. OMR
• D. Barcode Reader

Which card contains magnetically encoded information?

• A. Magnetic Strip Card
• B. Smart Card
• C. Barcoded Card
• D. Plastic Card

Which type of card contains a microprocessor and memory chip?

• A. Smart Card
• B. Magnetic Card
• C. ID Card
• D. Debit Card

What is another name for a fax machine?

• A. Facsimile Transmission Machine
• B. Image Transfer Machine
• C. Document Scanner
• D. Text Copier

What is the full form of OMR?

• A. Optical Marks Recognition
• B. Optical Magnetic Reader
• C. Official Mark Reader
• D. Optical Memory Reader

Which input device is used to read handwritten marks on paper?

• A. OMR
• B. OCR
• C. MICR
• D. Barcode Reader

Which device is commonly used in education to check objective answers?

• A. OMR
• B. MICR
• C. OCR
• D. Trackball

Who invented the mouse?

• A. Douglas Engelbart
• B. Charles Babbage
• C. Tim Berners-Lee
• D. Alan Turing

Which technology does an optical mouse use?

• A. Laser
• B. Magnetic
• C. Mechanical ball
• D. Ultrasonic

What are source data-entry devices also called?

• A. Direct input devices
• B. Secondary devices
• C. Storage input devices
• D. Temporary input tools

What does a light pen use to detect input on the screen?

• A. Light sensitivity
• B. Electromagnetic waves
• C. Pressure sensors
• D. Infrared signal

What is the function of right-clicking with a mouse?

• A. To access object properties
• B. To scroll the page
• C. To left align text
• D. To close a window

Which pointing device features a vertical handle and is commonly used for gaming or simulations?

• A. Joystick
• B. Trackball
• C. Touch pad
• D. Mouse

What kind of display allows user input by physically touching it?

• A. Touch screen
• B. LCD screen
• C. CRT screen
• D. LED monitor

Which input device is handheld and detects light to interact with the screen?

• A. Light pen
• B. Joystick
• C. Barcode reader
• D. Scanner

Which professionals commonly use light pens for detailed screen work?

• A. Engineers and graphic designers
• B. Teachers
• C. Bank clerks
• D. Writers

What mouse action is typically used to open object properties or menus?

• A. Right-clicking
• B. Left-clicking
• C. Double-clicking
• D. Dragging

Which device is stationary but has a moveable ball on top for controlling the pointer?

• A. Trackball
• B. Mouse
• C. Joystick
• D. Touch pad

What is another name for a touch pad?

• A. Track pad
• B. Pointer pad
• C. Soft mouse
• D. Scroll pad

Which pointing device is located between keyboard keys and is pressure-sensitive?

• A. Pointing stick
• B. Joystick
• C. Touch pad
• D. Trackball

What does OCR stand for?

• A. Optical Character Recognition
• B. Optical Code Reader
• C. Optical Color Recognition
• D. Object Code Reader

Which card contains magnetically encoded information?

• A. Magnetic strip card
• B. Smart card
• C. SIM card
• D. RFID card

Which card has a microprocessor and memory chip?

• A. Smart card
• B. Debit card
• C. Credit card
• D. Magnetic strip card

What does MICR stand for?

• A. Magnetic-Ink Character Recognition
• B. Magnetic Input Code Reader
• C. Machine Image Code Recognition
• D. Micro Intelligent Code Reader

Which device reads handwritten marks or symbols from paper?

• A. OMR
• B. OCR
• C. MICR
• D. Barcode Reader

What is used in education to check objective answers?

• A. OMR
• B. MICR
• C. OCR
• D. Light Pen

Which device does not move across the surface unlike a mouse?

• A. Joystick
• B. Trackball
• C. Light pen
• D. Touchpad

What is another name for a touch pad?

• A. Click pad
• B. Smart pad
• C. Track pad
• D. Finger pad

Where is a pointing stick located?

• A. On the mouse
• B. Between keyboard keys
• C. On the monitor
• D. On the CPU

Which input device has a vertical handle and is often used in gaming?

• A. Light pen
• B. Joystick
• C. Mouse
• D. Barcode scanner

What input method involves touching the screen directly?

• A. Scanner
• B. Touch screen
• C. Keyboard
• D. Mouse

Which device is light-sensitive and handheld, used by designers?

• A. Light pen
• B. Mouse
• C. Stylus
• D. Joystick

Which professionals commonly use a light pen?

• A. Accountants and lawyers
• B. Engineers and graphic designers
• C. Doctors and nurses
• D. Writers and editors

What is the pointer in a GUI environment?

• A. A small symbol on the screen
• B. A mouse
• C. A keyboard shortcut
• D. A window title

Which device controls the movement of the pointer on the screen?

• A. Scanner
• B. Pointing device
• C. Keyboard
• D. Monitor

Which device is stationary and uses a moveable ball for pointer control?

• A. Mouse
• B. Trackball
• C. Joystick
• D. Light pen

What is the pointer in a GUI environment?

• A. A small symbol on the screen
• B. A mouse
• C. A keyboard shortcut
• D. A window title

Which key moves the cursor to the beginning of a line or top-left of the screen?

• A. End
• B. Home
• C. Insert
• D. Ctrl

Which key toggles between insert and overwrite typing modes?

• A. Delete
• B. Insert
• C. Backspace
• D. Ctrl

Which part of the keyboard resembles a typewriter and includes letters, digits, and special keys?

• A. Numeric Keypad
• B. Function Keys
• C. Main Keyboard
• D. Arrow Keys

How many function keys are typically found on a standard keyboard?

• A. 10
• B. 12
• C. 8
• D. 15

The ‘QWERTY’ keyboard layout was invented by:

• A. Charles Babbage
• B. John von Neumann
• C. Christopher Latham Sholes
• D. Alan Turing

Which key deletes the character to the right of the cursor?

• A. Backspace
• B. Delete
• C. Esc
• D. Insert

Which key combination is used to save a file in many applications?

• A. Alt + S
• B. Ctrl + S
• C. Shift + S
• D. Ctrl + Shift + S

What is the main function of the Scroll Lock key?

• A. Pauses current program
• B. Locks the keyboard
• C. Controls screen scrolling behavior
• D. Switches between windows

The Pause key is primarily used to:

• A. Reboot the system
• B. Halt screen output or a program
• C. Change keyboard layout
• D. Activate screen reader

What is the function of the Caps Lock key?

• A. Activates numeric keypad
• B. Toggles between uppercase and lowercase
• C. Deletes text
• D. Opens task manager

Which key toggles between insert and overwrite mode?

• A. Home
• B. Insert
• C. End
• D. Shift

Which key is used to move the cursor to the start of a line?

• A. End
• B. Home
• C. PgUp
• D. Insert

Which arrow key moves the cursor down one line?

• A. Left Arrow
• B. Down Arrow
• C. Up Arrow
• D. Right Arrow

What is the function of the Tab key on the keyboard?

• A. Print screen
• B. Delete a file
• C. Insert a tab space
• D. Lock the screen

What does the Print Screen key do on a keyboard?

• A. Pauses a video
• B. Captures screen image to clipboard
• C. Locks the screen
• D. Opens task manager

Which key is used to delete a character to the left of the cursor?

• A. Delete
• B. Backspace
• C. Insert
• D. Esc

What type of input device is used to capture images and convert them into digital form?

• A. Mouse
• B. Digital Camera
• C. Printer
• D. Monitor

What is the purpose of the Num Lock key on a keyboard?

• A. Open Start menu
• B. Toggle numeric keypad functions
• C. Print document
• D. Adjust brightness

Which key is used to toggle between uppercase and lowercase letters?

• A. Shift
• B. Caps Lock
• C. Tab
• D. Alt

What does the Scroll Lock key do on the keyboard?

• A. Pauses text
• B. Deletes current line
• C. Locks/unlocks scrolling of text
• D. Opens settings

Which key combination is typically used to apply commands on a keyboard?

• A. Shift + Space
• B. Ctrl + Alt
• C. Esc + Tab
• D. Caps Lock + Enter

Which key deletes the character to the right of the cursor?

• A. Backspace
• B. Delete
• C. End
• D. Esc

What is the function of the Print Screen key?

• A. Capture screen image to clipboard
• B. Print current document
• C. Start screen recording
• D. Open task manager

Which key pauses or halts text scrolling or running programs?

• A. Scroll Lock
• B. Pause
• C. Insert
• D. Home

What is the use of the End key on a keyboard?

• A. Moves cursor to start of line
• B. Moves cursor to end of document or line
• C. Deletes last character
• D. Refreshes screen

Which key deletes the character to the right of the cursor?

• A. Backspace
• B. Insert
• C. Delete
• D. Tab

What is the function of the Scroll Lock key?

• A. Capture screen image
• B. Pause programs
• C. Lock/unlock text scrolling
• D. Exit applications

Which input device is used to scan documents into the computer?

• A. Scanner
• B. Mouse
• C. Touchpad
• D. Modem

What does the Num Lock key do?

• A. Locks the keyboard
• B. Switches between apps
• C. Activates/deactivates numeric keypad
• D. Turns off monitor

Which key moves the cursor to the start of a line?

• A. End
• B. Insert
• C. Home
• D. Delete

Which input device captures images digitally?

• A. Scanner
• B. Digital Camera
• C. Printer
• D. Joystick

Which key is used to toggle between uppercase and lowercase letters?

• A. Ctrl
• B. Shift
• C. Caps Lock
• D. Tab

Which key combination is used to apply commands in software applications?

• A. Shift + Enter
• B. Ctrl + Any key
• C. Tab + Space
• D. Esc + Alt

What is the purpose of the Insert key on a keyboard?

• A. Deletes selected text
• B. Toggles between insert and overwrite mode
• C. Moves cursor to next line
• D. Refreshes the page

Which of the following is a pointing input device?

• A. Mouse
• B. Keyboard
• C. Scanner
• D. Microphone

What does the Num Lock key control?

• A. Caps Lock
• B. Function Keys
• C. Numeric Keypad
• D. Scroll Lock

What kind of key is ‘F5’ on a keyboard?

• A. Modifier Key
• B. Function Key
• C. Navigation Key
• D. Arrow Key

Who invented the QWERTY keyboard?

• A. Charles Babbage
• B. Christopher Latham Sholes
• C. Tim Berners-Lee
• D. Alan Turing

Which key is used to cancel an operation on the keyboard?

• A. Esc
• B. Alt
• C. Shift
• D. Tab

Which section of the keyboard resembles a typewriter?

• A. Function Keys
• B. Numeric Keypad
• C. Main Keyboard
• D. Additional Keys

Which of the following is an input device?

• A. Keyboard
• B. Monitor
• C. Printer
• D. Speaker

What is the function of the ‘Caps Lock’ key on the keyboard?

• A. Deletes a character
• B. Toggles uppercase and lowercase
• C. Moves cursor to start
• D. Scrolls text

Which keys are referred to as modifier keys?

• A. F1 to F12
• B. Ctrl, Alt, Shift
• C. Home, End
• D. Insert, Delete

Which of the following is a compression tool?

• A. MiniTool
• B. WinZip
• C. CCleaner
• D. Paragon

What is the function of disk cleanup tools?

• A. Create backups
• B. Manage partitions
• C. Remove unnecessary files
• D. Defragment files

Which of the following tools is used for disk defragmentation?

• A. Defraggler
• B. WinRAR
• C. 7-Zip
• D. Google Chrome

Which of the following is a compression tool? (4)

• A. MiniTool
• B. WinZip
• C. CCleaner
• D. Paragon

What is the function of disk cleanup tools? (5)

• A. Create backups
• B. Manage partitions
• C. Remove unnecessary files
• D. Defragment files

Which of the following tools is used for disk defragmentation? (6)

• A. Defraggler
• B. WinRAR
• C. 7-Zip
• D. Google Chrome

Which of the following is a compression tool? (7)

• A. MiniTool
• B. WinZip
• C. CCleaner
• D. Paragon

What is the function of disk cleanup tools? (8)

• A. Create backups
• B. Manage partitions
• C. Remove unnecessary files
• D. Defragment files

Which of the following tools is used for disk defragmentation? (9)

• A. Defraggler
• B. WinRAR
• C. 7-Zip
• D. Google Chrome

Which of the following is a compression tool? (10)

• A. MiniTool
• B. WinZip
• C. CCleaner
• D. Paragon

What is the function of disk cleanup tools? (11)

• A. Create backups
• B. Manage partitions
• C. Remove unnecessary files
• D. Defragment files

Which of the following tools is used for disk defragmentation? (12)

• A. Defraggler
• B. WinRAR
• C. 7-Zip
• D. Google Chrome

Which of the following is a compression tool? (13)

• A. MiniTool
• B. WinZip
• C. CCleaner
• D. Paragon

What is the function of disk cleanup tools? (14)

• A. Create backups
• B. Manage partitions
• C. Remove unnecessary files
• D. Defragment files

Which of the following tools is used for disk defragmentation? (15)

• A. Defraggler
• B. WinRAR
• C. 7-Zip
• D. Google Chrome

Which of the following is a compression tool? (16)

• A. MiniTool
• B. WinZip
• C. CCleaner
• D. Paragon

What is the function of disk cleanup tools? (17)

• A. Create backups
• B. Manage partitions
• C. Remove unnecessary files
• D. Defragment files

Which of the following tools is used for disk defragmentation? (18)

• A. Defraggler
• B. WinRAR
• C. 7-Zip
• D. Google Chrome

Which of the following is a compression tool? (19)

• A. MiniTool
• B. WinZip
• C. CCleaner
• D. Paragon

What is the function of disk cleanup tools? (20)

• A. Create backups
• B. Manage partitions
• C. Remove unnecessary files
• D. Defragment files

Which of the following tools is used for disk defragmentation? (21)

• A. Defraggler
• B. WinRAR
• C. 7-Zip
• D. Google Chrome

Which of the following is a compression tool? (22)

• A. MiniTool
• B. WinZip
• C. CCleaner
• D. Paragon

What is the function of disk cleanup tools? (23)

• A. Create backups
• B. Manage partitions
• C. Remove unnecessary files
• D. Defragment files

Which of the following tools is used for disk defragmentation? (24)

• A. Defraggler
• B. WinRAR
• C. 7-Zip
• D. Google Chrome

Which of the following is a compression tool? (25)

• A. MiniTool
• B. WinZip
• C. CCleaner
• D. Paragon

What is the function of disk cleanup tools? (26)

• A. Create backups
• B. Manage partitions
• C. Remove unnecessary files
• D. Defragment files

Which of the following tools is used for disk defragmentation? (27)

• A. Defraggler
• B. WinRAR
• C. 7-Zip
• D. Google Chrome

Which of the following is a compression tool? (28)

• A. MiniTool
• B. WinZip
• C. CCleaner
• D. Paragon

What is the function of disk cleanup tools? (29)

• A. Create backups
• B. Manage partitions
• C. Remove unnecessary files
• D. Defragment files

Which of the following tools is used for disk defragmentation? (30)

• A. Defraggler
• B. WinRAR
• C. 7-Zip
• D. Google Chrome

Which of the following is a compression tool? (31)

• A. MiniTool
• B. WinZip
• C. CCleaner
• D. Paragon

What is the function of disk cleanup tools? (32)

• A. Create backups
• B. Manage partitions
• C. Remove unnecessary files
• D. Defragment files

Which of the following tools is used for disk defragmentation? (33)

• A. Defraggler
• B. WinRAR
• C. 7-Zip
• D. Google Chrome

Which of the following is a compression tool? (34)

• A. MiniTool
• B. WinZip
• C. CCleaner
• D. Paragon

What is the function of disk cleanup tools? (35)

• A. Create backups
• B. Manage partitions
• C. Remove unnecessary files
• D. Defragment files

Which of the following tools is used for disk defragmentation? (36)

• A. Defraggler
• B. WinRAR
• C. 7-Zip
• D. Google Chrome

Which of the following is a compression tool? (37)

• A. MiniTool
• B. WinZip
• C. CCleaner
• D. Paragon

What is the function of disk cleanup tools? (38)

• A. Create backups
• B. Manage partitions
• C. Remove unnecessary files
• D. Defragment files

Which of the following tools is used for disk defragmentation? (39)

• A. Defraggler
• B. WinRAR
• C. 7-Zip
• D. Google Chrome

Which of the following is a compression tool? (40)

• A. MiniTool
• B. WinZip
• C. CCleaner
• D. Paragon

What is the function of disk cleanup tools? (41)

• A. Create backups
• B. Manage partitions
• C. Remove unnecessary files
• D. Defragment files

Which of the following tools is used for disk defragmentation? (42)

• A. Defraggler
• B. WinRAR
• C. 7-Zip
• D. Google Chrome

Which of the following is a compression tool? (43)

• A. MiniTool
• B. WinZip
• C. CCleaner
• D. Paragon

What is the function of disk cleanup tools? (44)

• A. Create backups
• B. Manage partitions
• C. Remove unnecessary files
• D. Defragment files

Which of the following tools is used for disk defragmentation? (45)

• A. Defraggler
• B. WinRAR
• C. 7-Zip
• D. Google Chrome

Which generation of computers used vacuum tubes and magnetic drums?

• A. First Generation
• B. Second Generation
• C. Third Generation
• D. Fourth Generation

What replaced vacuum tubes in second-generation computers?

• A. Transistors
• B. Microprocessors
• C. Vacuum Tubes
• D. Integrated Circuits

Who developed the first Integrated Circuit (IC) in 1958?

• A. Jack Kilby & Robert Noyce
• B. John Atanasoff
• C. Steve Jobs
• D. Charles Babbage

Which generation introduced the Intel 4004 microprocessor?

• A. Fourth Generation
• B. First Generation
• C. Second Generation
• D. Third Generation

Which generation of computers is based on Artificial Intelligence?

• A. Fifth Generation
• B. Third Generation
• C. Fourth Generation
• D. Second Generation

Analog computers give results in what form?

• A. Analog form
• B. Binary digits
• C. Digital printout
• D. Code

Who invented digital computers?

• A. John Vincent Atanasoff
• B. Charles Babbage
• C. Steve Jobs
• D. Alan Turing

Which type of computer combines features of both analog and digital?

• A. Hybrid Computers
• B. Analog Computers
• C. Digital Computers
• D. Supercomputers

What are the two main classifications of computer software?

• A. System and Application
• B. Utility and Gaming
• C. Free and Paid
• D. Basic and Advanced

Which of the following is NOT a type of packaged software?

• A. Internet Explorer
• B. MS Word
• C. Custom Payroll System
• D. Photoshop