Input & Output Devices MCQs 2026

45 questions with detailed answers · 19 from past papers · 5 quiz batches available

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Page 1 of 1Questions 1–10 of 45

Q1Past Paper · PPSC/FPSC/NTSeasy
The smallest element or dot of a picture on a screen is called a
1. ABit
2. BPixel
3. CByte
4. DVoxel
💡 Explanation:
A pixel (picture element) is the smallest addressable dot on a display.
Q2easy
Which of the following is an input device
1. AMonitor
2. BPrinter
3. CSpeaker
4. DKeyboard
💡 Explanation:
A keyboard is an input device; monitor, printer and speaker are output devices.
Q3easy
Which of the following is an output device
1. AMouse
2. BMonitor
3. CScanner
4. DKeyboard
💡 Explanation:
A monitor displays output; the others are input devices.
Q4Past Paper · PPSC/FPSC/NTSeasy
The most commonly used input device is the
1. AKeyboard
2. BMouse
3. CScanner
4. DJoystick
💡 Explanation:
The keyboard is the most commonly used input device for entering text and commands.
Q5easy
The standard keyboard layout is called
1. ADVORAK
2. BAZERTY
3. CQWERTY
4. DQneedWERTY
💡 Explanation:
The standard keyboard layout is QWERTY, named after the first six letters.
Q6Past Paper · PPSC/FPSC/NTSmedium
The computer mouse was invented by
1. ABill Gates
2. BDouglas Engelbart
3. CAlan Turing
4. DSteve Jobs
💡 Explanation:
Douglas Engelbart invented the computer mouse in the 1960s.
Q7Past Paper · PPSC/FPSC/NTSeasy
Which device is used to read text and convert it into digital form
1. AMICR
2. BOMR
3. CBarcode reader
4. DScanner
💡 Explanation:
A scanner reads printed documents and converts them into digital images.
Q8Past Paper · PPSC/FPSC/NTSmedium
MICR technology is mainly used in
1. ABanks
2. BSchools
3. CHospitals
4. DAirports
💡 Explanation:
MICR (Magnetic Ink Character Recognition) is used by banks to process cheques.
Q9Past Paper · PPSC/FPSC/NTSmedium
OMR stands for
1. AOptical Machine Reader
2. BOptical Memory Reader
3. COptical Mark Reader
4. DOutput Mark Reader
💡 Explanation:
OMR stands for Optical Mark Reader, used to detect marks on paper.
Q10Past Paper · PPSC/FPSC/NTSmedium
OMR is commonly used to check
1. ABank cheques
2. BHandwriting
3. CBarcodes
4. DMultiple choice answer sheets
💡 Explanation:
OMR is used to read marked answer sheets such as MCQ exam forms.
Q11Past Paper · PPSC/FPSC/NTSmedium
OCR stands for
1. AOptical Character Register
2. BOptical Character Recognition
3. COptical Code Reader
4. DOutput Character Reader
💡 Explanation:
OCR stands for Optical Character Recognition, which converts images of text into editable text.
Q12medium
A device that reads barcodes works using
1. ALaser light
2. BSound waves
3. CMagnetic ink
4. DRadio waves
💡 Explanation:
A barcode reader uses laser light to scan and decode the bars.
Q13easy
Which of the following is a pointing device
1. AScanner
2. BKeyboard
3. CMouse
4. DMicrophone
💡 Explanation:
A mouse is a pointing device used to control the cursor on screen.
Q14easy
A joystick is mainly used for
1. ATyping
2. BPrinting
3. CScanning
4. DPlaying games
💡 Explanation:
A joystick is an input device chiefly used for playing video games.
Q15medium
A trackball is best described as
1. AAn upside-down mouse
2. BA type of printer
3. CA scanner
4. DA monitor
💡 Explanation:
A trackball works like an upside-down mouse, with a rolling ball on top.
Q16easy
Which device converts hard copy documents into digital format
1. APrinter
2. BPlotter
3. CScanner
4. DSpeaker
💡 Explanation:
A scanner digitizes hard-copy documents into image files.
Q17medium
A light pen is an example of a/an
1. AOutput device
2. BInput device
3. CStorage device
4. DProcessing device
💡 Explanation:
A light pen is an input device used to point directly on a screen.
Q18easy
Which of the following is used to take pictures as input
1. ALight pen
2. BJoystick
3. CTrackball
4. DDigital camera
💡 Explanation:
A digital camera captures images and inputs them into the computer.
Q19easy
The output displayed on a monitor is called
1. ASoft copy
2. BHard copy
3. CPrintout
4. DBackup
💡 Explanation:
On-screen output is called a soft copy.
Q20Past Paper · PPSC/FPSC/NTSeasy
A monitor is also known as
1. ACPU
2. BALU
3. CVDU
4. DUPS
💡 Explanation:
A monitor is also called a VDU (Visual Display Unit).
Q21medium
The sharpness and clarity of an image on a monitor is called its
1. ABrightness
2. BContrast
3. CFrequency
4. DResolution
💡 Explanation:
Resolution, measured in pixels, determines the sharpness of the displayed image.
Q22Past Paper · PPSC/FPSC/NTSmedium
Printer output quality is measured in
1. ADPI (Dots Per Inch)
2. BHertz
3. CBytes
4. DPixels
💡 Explanation:
Print quality is measured in DPI, the number of dots per inch.
Q23Past Paper · PPSC/FPSC/NTSmedium
Which of the following is an impact printer
1. AInkjet printer
2. BLaser printer
3. CDot matrix printer
4. DThermal printer
💡 Explanation:
A dot matrix printer is an impact printer that strikes pins against a ribbon.
Q24Past Paper · PPSC/FPSC/NTSmedium
Which of the following is a non-impact printer
1. ADot matrix
2. BLaser printer
3. CDaisy wheel
4. DLine printer
💡 Explanation:
A laser printer is a non-impact printer that uses toner and light.
Q25Past Paper · PPSC/FPSC/NTSmedium
A laser printer uses which material to print
1. AToner
2. BRibbon
3. CInk cartridge
4. DWax
💡 Explanation:
Laser printers use powdered toner fused onto the paper by heat.
Q26medium
Which printer is best suited for fast high-volume printing
1. ADot matrix
2. BDaisy wheel
3. CInkjet
4. DLaser
💡 Explanation:
Laser printers are fast page printers ideal for high-volume output.
Q27Past Paper · PPSC/FPSC/NTSmedium
A device used to produce large engineering drawings and maps is a
1. APrinter
2. BScanner
3. CPlotter
4. DMonitor
💡 Explanation:
A plotter is an output device used to produce large, precise vector drawings.
Q28Past Paper · PPSC/FPSC/NTSmedium
Which of the following is both an input and output device
1. AKeyboard
2. BTouch screen
3. CScanner
4. DPrinter
💡 Explanation:
A touch screen both displays output and accepts touch input.
Q29hard
The speed of a dot matrix printer is measured in
1. ACharacters per second (CPS)
2. BPages per minute
3. CLines per minute
4. DDots per inch
💡 Explanation:
Dot matrix printer speed is measured in characters per second (CPS).
Q30medium
The speed of a laser printer is measured in
1. ACPS
2. BLPM
3. CDPI
4. DPages per minute (PPM)
💡 Explanation:
Laser printer speed is measured in pages per minute (PPM).
Q31easy
Which key deletes the character to the left of the cursor
1. ADelete
2. BEnter
3. CBackspace
4. DShift
💡 Explanation:
The Backspace key deletes the character immediately to the left of the cursor.
Q32Past Paper · PPSC/FPSC/NTSeasy
How many function keys are there on a standard keyboard
1. A10
2. B12
3. C14
4. D16
💡 Explanation:
A standard keyboard has 12 function keys, F1 through F12.
Q33Past Paper · PPSC/FPSC/NTSmedium
A standard modern keyboard typically has how many keys
1. A104
2. B84
3. C64
4. D128
💡 Explanation:
The standard enhanced keyboard has 104 keys.
Q34medium
Which input device do graphic designers use to draw freehand
1. ASpeaker
2. BMonitor
3. CPlotter
4. DGraphics tablet
💡 Explanation:
A graphics tablet (digitizer) lets designers draw directly into the computer.
Q35easy
A microphone is used to input
1. AText
2. BImages
3. CSound
4. DVideo
💡 Explanation:
A microphone captures sound and inputs it into the computer.
Q36easy
Which device displays output on a large screen for an audience
1. APlotter
2. BMultimedia projector
3. CScanner
4. DDigitizer
💡 Explanation:
A multimedia projector projects the computer's output onto a large screen.
Q37Past Paper · PPSC/FPSC/NTSmedium
Fingerprint readers are an example of
1. AOutput devices
2. BStorage devices
3. CProcessing devices
4. DBiometric input devices
💡 Explanation:
Fingerprint readers are biometric input devices that capture unique physical traits.
Q38easy
Which of the following is NOT an output device
1. ABarcode reader
2. BMonitor
3. CPrinter
4. DSpeaker
💡 Explanation:
A barcode reader is an input device; the rest are output devices.
Q39easy
A webcam is classified as a/an
1. AOutput device
2. BInput device
3. CStorage device
4. DMemory device
💡 Explanation:
A webcam captures video and images, making it an input device.
Q40medium
The arrangement of keys on a keyboard was inherited from the
1. ACalculator
2. BComputer
3. CTypewriter
4. DPrinter
💡 Explanation:
The QWERTY key arrangement was inherited from the mechanical typewriter.
Q41easy
Speakers and headphones are examples of
1. AOutput devices
2. BInput devices
3. CStorage devices
4. DPointing devices
💡 Explanation:
Speakers and headphones output sound, so they are output devices.
Q42Past Paper · PPSC/FPSC/NTSmedium
Which technology reads characters printed with magnetic ink
1. AOMR
2. BOCR
3. CBarcode
4. DMICR
💡 Explanation:
MICR reads characters printed in special magnetic ink, mainly on cheques.
Q43easy
A touchpad is most commonly found on a
1. ADesktop PC
2. BServer
3. CLaptop
4. DMainframe
💡 Explanation:
A touchpad is a pointing device typically built into laptops.
Q44easy
Monitor screen size is usually measured in
1. APixels
2. BInches (diagonal)
3. CDPI
4. DBytes
💡 Explanation:
Monitor size is measured as the diagonal length of the screen in inches.
Q45easy
A stylus is typically used with a
1. ADesktop monitor only
2. BDot matrix printer
3. CLaser printer
4. DTouch screen or tablet
💡 Explanation:
A stylus is a pen-like input tool used with touch screens and tablets.

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Input & Output Devices MCQs 2026

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