WorksheetsWJEC GCSE Computer Science - Peripherals MEGA QUIZ
Total questions: 81
Worksheet time: 41mins
Which statement best defines an input device in a computer system?
Hardware that displays data from the computer
Hardware that enters data into the computer
Network equipment that connects computers together
Software that processes data for the computer
A student records a song using a microphone and then plays it back through speakers. Which option correctly classifies the microphone and speakers?
Microphone input, speakers output
Microphone output, speakers input
Both microphone and speakers output
Both microphone and speakers input
Which device would be most appropriate to output a high‑resolution image for a physical poster?
Keyboard with backlighting
Inkjet or laser printer
Flatbed scanner device
Webcam with autofocus lens
You are evaluating a new device for a school lab. Which criterion would best help determine whether it is an input or output device?
Whether it enters or produces data
Whether it is expensive or cheap
Whether it is wired or wireless
Whether it is portable or stationary
Which phrase best describes a computer mouse in everyday use?
A processing unit for running programs
An output device for showing images
A storage device for saving files
A pointing device for selecting items
What is the typical purpose of the scroll wheel on a mouse?
Switch between open applications
Control computer volume levels
Power the mouse on and off
Scroll pages up and down smoothly
Which feature indicates an optical mouse rather than a mechanical mouse?
A red light underneath the mouse
A removable battery cover
A wireless USB dongle
A braided USB cable
Older mechanical mice detected movement using which component?
A rubber ball between rollers
A laser diode mechanism
A capacitive touchplate
An infrared sensor array
Which set correctly lists keyboard key groups?
Power, display, cable, ports, firmware
Alphabet, function, numeric, arrows, command
Drive, memory, cache, bus, clock
Widgets, themes, icons, cursors, skins
Why are many keyboards called Qwerty keyboards?
They use quiet tactile key switches
Top row begins with Q W E R T Y
They are designed for two-handed typing
Keys arranged in alphabetical order
What health risk can result from overusing mouse or keyboard devices?
Motion sickness due to screens
Short-term memory loss in users
Color blindness affecting vision
Repetitive Strain Injury causing pain
Which action best helps prevent input device RSI during long sessions?
Cleaning keys with strong solvents
Taking breaks and using ergonomic designs
Turning screen brightness to maximum
Typing only with one dominant hand
Which best describes what a flatbed scanner creates from a paper document?
A digital bitmap image file
A vector graphic with paths
A compressed audio waveform
A spreadsheet of pixel values
Which component on a flatbed scanner directly captures reflected light to form pixels?
USB communication chipset
Cooling fan near the lamp
Stationary roller assembly
CCD capture sensor device
Why can a flatbed scanner handle fragile documents better than roller scanners?
The document stays stationary on glass
The lamp runs at lower voltage
The motor spins at faster speed
The device uses thicker plastic parts
What is the role of the light source in a flatbed scanner?
Illuminate the document evenly
Amplify the CCD electrical signals
Move paper across the glass plate
Convert pixels into JPEG format
Microphones initially detect sound as which type of signal?
Vector curves representing tone
Digital packets over USB
Binary waveforms in bits
Analogue sound waves in air
What process is needed to store microphone input as computer data?
Analogue-to-digital conversion
Lossless vectorization of audio
Frame interpolation of samples
Optical scanning of waveforms
A webcam records motion video by capturing many image frames. Approximately how many frames per second are needed for smooth motion?
Exactly twelve fps
Fewer than ten fps
More than twenty-five fps
Around five fps
Which connection is commonly used to link an external webcam to a computer?
USB cable to a port
HDMI cable to monitor
Audio jack to microphone
Ethernet cable to router
Which scenario best matches a practical webcam use case?
Teleconferencing with live video
Storing paper letters as bitmaps
Measuring voltage of speakers
Editing MIDI sequences offline
If a recording is too quiet after digitizing microphone input, which action logically improves it without re-recording?
Reduce webcam frame rate
Switch to a roller document feeder
Lower the scanner resolution
Increase gain on the preamp
Which device detects filled bubbles on exam sheets by measuring changes in reflected light?
Optical Mark Recognition device
Optical Character Recognition tool
Magnetic Ink Character reader
Radio Frequency Identification tag
What causes an OMR sensor to register a mark on paper?
Increase in paper temperature under the lamp
Stronger magnetic field around the pencil mark
Higher sound emitted by the scanner head
Less light reflected from the marked area
After scanning, what does an OMR system typically do with the captured data?
Sends results to a computer for analysis
Converts marks into high‑resolution images
Embeds marks back onto the original sheet
Encrypts the sheet for secure printing
Which statement best describes OCR in a typical setup?
A scanner and software convert scanned text to editable form
A printer reads handwriting and creates typed copies
A barcode gun uploads prices directly to receipts
A camera stores pages as photographs for archiving
Why must documents processed by OCR be checked afterward?
Software cannot recognize printed fonts at all
Paper always shrinks during scanning
Recognition errors can occur despite high accuracy
Scanners remove punctuation from text
Which factor most affects OCR accuracy according to the material?
Number of pages in the document
Brightness of room lighting
Clarity and neatness of the writing
Age of the computer hardware
A barcode scanner primarily helps identify a product by sending what to a database?
Light reflection pattern from the code
Thermal imprint of the package surface
Audio signal generated by the trigger
User‑typed product name into the system
Which information is encoded in the varying line widths of a barcode?
Customer loyalty points balance
Store aisle and shelf position
Exact retail price and tax amount
Country, manufacturer, and product code
Which statement about barcodes is correct for retail checkout?
Barcodes do not store the price of the item
Barcodes always include warranty duration
Barcodes embed the cashier’s employee ID
Barcodes contain the store’s daily sales total
You must choose a technology to automatically read handwritten multiple‑choice answers quickly. Which is the best fit?
Barcode scanning for product lookup
OCR for translating printed paragraphs
Manual typing using a standard keyboard
OMR for detecting filled bubbles
What does QR in QR code stand for?
Queued Redirect
Quality Readout
Quantum Reader
Quick Response
Which statement about QR code storage is accurate?
Stores 7089 numbers or 4296 characters
Stores 7089 symbols or 4296 images
Stores 4096 numbers or 7089 characters
Stores 4296 numbers or 7089 characters
How is a QR code typically read by devices?
Read using magnetic stripe sensors
Scanned with sweeping laser lines
Captured as an image and decoded
Pressed with capacitive touch points
Which use of QR codes best matches their common purpose?
Replacing all traditional barcodes
Directing users quickly to a website
Storing high-resolution photographs
Encrypting wireless network traffic
Which component does a graphics tablet include for drawing input?
Keyboard with macro keys
Mouse with high DPI sensor
Touchscreen with finger gestures
Flat pad with a special pen
How are lines made on a graphics tablet displayed?
Projected directly onto the tablet
Recreated on the connected screen
Saved only inside the pen memory
Printed automatically on paper
What typically controls the pen on a graphics tablet?
Capacitive sensing rather than buttons
Infrared beams rather than light
Radio signals rather than touch
Laser tracking rather than wheels
Which task is graphics tablets especially suited for?
Creating accurate drawings and illustrations
Editing spreadsheets and formulas
Compiling programming source code
Managing email and calendars
What do environmental sensors connected to a computer commonly detect?
Clicks, keystrokes, and gestures
Text, images, and audio files
Light, temperature, and pressure
Voltage, current, and resistance
Why is an ADC needed with analogue sensors?
Store QR code characters in memory
Amplify wireless radio pen signals
Convert analogue signals into digital data
Translate laser scans into images
How is data from sensors typically collected?
Manually by pressing a button
Randomly when power is low
Automatically at set intervals
Only during user login events
Which action triggers a sip/puff switch to change its state?
Touching a capacitive panel
Blinking rapidly at a sensor
Sipping or blowing through a tube
Tilting the head slightly
What is the primary role of software in a sip/puff switch setup?
Interpret input and perform actions
Cool the device during operation
Encrypt signals for security
Convert air to electrical power
A concept keyboard uses an overlay mainly to:
Increase the mechanical key travel
Show symbols that map to functions
Protect keys from dust and oil
Reduce screen glare in bright light
Where are concept keyboards commonly used due to fast selection needs?
Home gaming setups
Air traffic control towers
Fast-food ordering stations
University lecture halls
Which scenario best fits using a concept keyboard?
Navigating 3D environments with precision
Typing long essays with many paragraphs
Selecting items from a limited menu quickly
Programming complex algorithms in code
What feature makes a Braille keyboard usable by blind users?
Raised dots representing Braille
Haptic vibration feedback only
Keys with backlit characters
Voice-activated command recognition
How does a Braille keyboard compare to a regular keyboard in operation?
It operates in the same way for input
It requires dual-hand chorded presses
It works exclusively with screen readers
It only supports numeric entry modes
Which benefit is most associated with concept keyboards in service environments?
Enhanced long-form text accuracy
Faster input from predefined choices
Lower electricity consumption overall
Improved multi-monitor coordination
Which statement best describes a touch screen as a device?
It is only an input hardware surface
It is only an output display panel
It is both input and output interface
It is neither input nor output device
What is the output on a touch screen during normal use?
The finger tapping the glass
The options shown on the screen
The circuits under the display
The app icons stored in memory
Where are touch screens commonly used today?
Only desktop monitors in offices
ATMs and smartphones for apps
Printers and barcode scanners
Projectors and speakers systems
Which action provides input to a touch screen interface?
Swiping a physical credit card
Displaying a weather widget
Pressing icons with your finger
Charging the phone battery
What does the magnetic stripe on a card typically store?
Hundreds of megabytes data
Up to about sixty characters
A live internet connection
Only the card’s expiry month
How is data accessed from a magnetic stripe card?
Type details on keypad manually
Insert card into chip reader
Swipe through stripe reader
Tap near contactless antenna
Which device reads data from an IC chip embedded in a bank card?
Magnetic stripe swipe unit
Smart card reader connected
Barcode scanner with laser
NFC tag writer antenna
In shop transactions using chip cards, what does the smart reader do?
It reads chip data to enact payment
It only displays date and time
It erases previous magnetic tracks
It writes a new chip number
Which comparison between magnetic stripes and IC chips is accurate?
Stripes require tapping while chips swipe
Stripes hold simple data while chips store securely
Stripes are wireless while chips need printers
Stripes process payments offline while chips stream video
A phone supports NFC tap-to-pay. Which component acts mainly as input/output in this scenario?
The camera scanning barcodes only
The speaker playing notification tone
The printer creating paper receipts
The touch screen showing and confirming
Which statement best explains how pixel count affects a monitor’s image quality?
Fewer pixels make text appear larger and crisper
More pixels always reduce screen brightness noticeably
Fewer pixels increase color accuracy dramatically
More pixels create sharper, clearer images
What is a common trade-off when choosing a larger monitor for everyday use?
Lower power use but worse clarity
Easier on eyes but higher cost
Harder to read yet cheaper
Better color but no resolution control
Which setup allows two screens to display content from one computer at the same time?
Dual monitor configuration
Screen mirroring via phone
Single monitor daisy-chain
Projector-only arrangement
Which factor most directly determines screen resolution quality on a display?
Size of the display’s bezel
Number of pixels on the screen
Type of desk the monitor is on
Brand logo on the front panel
A student wants crisp text for coding. Which monitor characteristic should they prioritize?
Glossy panel surface
Curved stand design
Lower refresh rate (Hz)
Higher pixel density (PPI)
Which component in a laser printer forms the image before toner is transferred to paper?
Photosensitive drum
Thermal ribbon spool
Liquid ink reservoir
Plotter carriage belt
How does an inkjet printer place color on paper during printing?
Embeds dye with ultraviolet curing
Draws lines using a pen carriage
Fuses dry toner with heated rollers
Sprays tiny droplets of liquid ink
Which statement correctly contrasts toner and ink cartridges?
Both are powder yet ink dissolves later
Toner is a dry powder; ink is liquid
Toner is liquid dye; ink is powder
Both are liquid but heat solidifies toner
What is a typical advantage of laser printers for high-volume school printing?
Slower output with higher photo quality
Faster pages with lower cost per page
Smaller size with better battery life
Quiet operation but frequent jams
Why might an inkjet be chosen for art class photo prints?
Superior speed for bulk documents
Better color gradients and fine detail
Lower heat protects the drum unit
Uses toner that resists smudging
In a plotter, what enables precise line drawing across large sheets?
A rotating drum that sprays ink
A laser beam that etches paper
A fixed nozzle with hot fuser
A movable pen mounted on rails
A user compares two 24-inch monitors: one 1080p and one 1440p. Which outcome is most likely?
1080p reduces eye strain more by default
1440p shows sharper details at same size
1080p displays more pixels per inch
Both show identical text clarity always
Which statement best describes projector portability in classroom use?
Lightweight units moved between rooms easily
Heavy models fixed to ceilings permanently
Battery-free devices needing wall power always
Portable screens replace projectors entirely
What is the main purpose of head tracking in a VR headset?
Store saved games on internal memory
Align virtual view with head movements
Measure user heartbeat during gameplay
Reduce display brightness automatically
Personalized audio in VR most likely means what for the user experience?
Audio recorded from the room microphones
Speakers shared with nearby players
Music chosen randomly by the system
Sound tailored to ear shape for clarity
In the image, what function does an NFC card reader perform?
Encrypts Wi‑Fi traffic for devices
Reads tag data using short-range radio
Stores cash for online transactions
Writes data to NFC tags remotely
When choosing a projector for travel, which feature should be prioritized?
High refresh rate over portability
Compact size and lightweight design
Fixed ceiling mount compatibility
Wired network port and large chassis
How does head tracking improve immersion compared to static displays?
It locks the view to one direction
It updates the scene as you look around
It pauses motion to prevent nausea
It replaces controllers with hand gestures
Which scenario correctly uses an NFC card reader in shops?
Scanning barcodes from product labels
Swiping magnetic stripe through a slot
Connecting a card via long USB cable
Tapping a contactless card near the reader
A VR system wants to provide personalized audio. What hardware change could support this goal?
Disable head tracking for consistent sound
Add external projector to the headset
Use ear-profiled equalization or spatial audio
Replace display with larger lenses
