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WorksheetsUnit 2: Fundamentals of Computer & PC Software Overview
Total questions: 116
Worksheet time: 58mins
Which statement best defines an input device in computing?
Circuit converting electricity into heat
Software translating binary into graphics
Hardware storing processed program output
Equipment sending data and control signals
What is the primary purpose of input devices?
Store files for long durations
Manage internal system cooling
Provide data and control signals
Display results to end users
Which pair lists the most common input devices?
Keyboard and mouse
Monitor and printer
CPU and GPU
Speaker and projector
Which device category translates human-understood forms into computer-usable data?
Network devices
Storage devices
Output devices
Input devices
Select the best example of an input device from the list.
LCD monitor
Scanner
Laser printer
External hard drive
A microphone is used to capture audio for a system. In computing terms, how is it classified?
Input device
Output device
Processing unit
Cooling component
Why do computers need input devices to begin processing tasks?
To render final visual output
To compress files for storage
To receive data and control signals
To cool down high-performance parts
Which statement correctly distinguishes input from output devices?
Input cools hardware; output powers components
Input stores programs; output runs calculations
Input displays results; output gathers commands
Input sends data to system; output presents results
Which device is primarily used to enter text and commands into a computer?
Webcam
Joystick
Scanner
Keyboard
Which device is classified as a pointing device?
Mouse
Microphone
Barcode reader
Digital camera
Which input device converts paper documents into digital images?
Light pen
Trackball
Gamepad
Scanner
Which device captures video for real-time communication?
Graphics tablet
MIDI keyboard
Touchpad
Webcam
Which device is used to record audio input?
Microphone
Joystick
Remote control
Numeric keypad
Which device allows drawing or writing with a stylus on a flat surface?
Gamepad
Graphics tablet
Touch screen
Light pen
Which device is designed for gaming and controls movement along axes?
Barcode reader
Webcam
Scanner
Joystick
Which keyboard layout is most commonly used on computers?
DVORAK
COLEMAK
AZERTY
QWERTY
A standard keyboard generally has how many keys?
88 keys
110 keys
92 keys
104 keys
Which device is a pen-like input tool used directly on a display or digitizer?
Touchpad
Trackball
Light pen
Remote control
Which device is best suited for capturing still photos as input?
Touchpad
Joystick
Microphone
Digital camera
Which device is an alternative to a mouse that uses a stationary ball controlled by fingers?
Light pen
Scanner
Gamepad
Trackball
Which input device is typically integrated into laptops for cursor control?
Barcode reader
Remote control
Touchpad
Joystick
Which device is used to enter musical notes and control sound software?
Graphics tablet
Webcam
MIDI keyboard
Numeric keypad
Which device reads coded labels attached to products?
Scanner
Light pen
Barcode reader
Microphone
Which device enables touch-based input and gesture control?
Gamepad
Webcam
Touch screen
Keyboard
Which handheld device sends commands to computers or TVs from a distance?
Trackball
Microphone
Joystick
Remote control
Which device is optimized for gaming with multiple buttons and directional pads?
Barcode reader
Light pen
Gamepad
Scanner
Which tool lets a presenter write directly on an interactive display surface?
Electronic whiteboard
Digital camera
Microphone
Webcam
Which numeric-only device is often used for quick number entry?
Numeric keypad
MIDI keyboard
Touchpad
Trackball
Which set of keys includes letters A–Z and digits 0–9 for general text entry?
Numeric keypad block
Control keys like Ctrl Alt
Typing keys on main section
Function keys row F1–F12
What is the primary purpose of the numeric keypad on a standard keyboard?
Opening system settings menus
Entering numeric data quickly
Running special application macros
Typing alphabetic characters faster
How many function keys are typically arranged along the top row of a keyboard?
Ten keys F1–F10
Eight keys F1–F8
Twelve keys F1–F12
Fourteen keys F1–F14
Which keys mainly manage cursor and screen navigation tasks?
Typing keys section
Control keys group
Numeric keypad block
Function keys row
Which option best describes the keyboard layout compared with older machines?
Unique to each computer brand
Identical to mechanical calculators
Similar to traditional typewriter
Completely different from typewriters
Which control key is commonly used to exit dialogs or cancel actions?
Page Up key
Escape Esc key
Insert Ins key
Home key top
Which combination is typically used to provide modifiers for shortcuts?
Ctrl and Alt keys
F1 and F2 keys
Page Up and Home
Num Lock and Enter
A student needs rapid numeric entry similar to a calculator. Which area should they use?
Central arrow cluster
Right-side numeric keypad
Top-row function keys
Left-side typing letters
Which statement about function keys is accurate?
They only type numerals and symbols
They replace all control keys entirely
Each has unique meaning for specific tasks
They control cursor movement exclusively
Which keys typically include Home, End, Insert, Delete, and arrow keys?
Function keys line
Numeric keypad area
Control keys cluster
Typing keys group
When moving the cursor without a mouse, which keys are most suitable?
Alphabet letters row
Function keys F5 F6
Directional arrow keys
Numeric keypad digits
Which feature differentiates modern keyboards from typewriters while keeping a similar layout?
Use of only function keys for typing
Additional keys for extra functions
Absence of control keys and arrows
Removal of number keys entirely
Which keys are commonly classified as special purpose keys on a keyboard?
Enter, Alt, F1, F2 function
Tab, Windows, Menu, PrtScn
Enter, Shift, Caps Lock, Num Lock
Shift, Escape, Backspace, Delete
What is the primary role of a mouse in computer interaction?
Storing files for quick access
Providing audio output to speakers
Acting as a cursor-control pointing device
Entering text into applications
Which component on a traditional mouse senses movement according to the description?
Optical sensor under the shell
Round ball at the base
Gyroscope inside the wheel
Pressure pad on the top
How does a mouse communicate actions to the computer?
It sends signals to the CPU when buttons are pressed
It changes monitor refresh rate in real time
It writes data directly to the hard drive
It updates BIOS settings automatically
Which features are typically present on a standard mouse?
Trackpad with multi-touch zones
Four macro keys with LEDs
Only a single touch surface
Left and right buttons with a wheel
Which statement correctly contrasts mouse input with keyboard text entry?
Mouse enters text; it cannot move the cursor
Keyboard moves cursor only; it cannot enter text
Keyboard cannot interact with applications at all
Mouse controls cursor position; it cannot enter text
Which listed advantage aligns with using a mouse over keyboard arrow keys?
It replaces all keyboard functions
It increases computer storage capacity
It moves the cursor faster on screen
It is more expensive than other devices
Which combination best summarizes stated advantages of a mouse?
Easy to use, not very expensive, faster cursor
Complex to learn, highly costly, slower cursor
Moderate learning, mid-cost, equal cursor speed
Hard to use, premium price, random cursor
Which statement best describes a joystick as an input device?
Half-inserted ball with finger control
Stick with ball moving in socket
Touch surface detecting finger gestures
Pen-like tool with optical sensor
What is the primary function of a light pen?
Scroll pages using a wheel
Select on-screen items or draw
Type characters into programs
Capture printed text via scanner
How does a trackball move the on-screen pointer?
By tilting a vertical stick
By dragging a flat touchpad
By clicking a pressure-sensitive button
By rotating a half-exposed ball
Identify the device shown: a stick with a spherical top used to move a cursor in four directions.
Joystick
Light pen
Trackball
Touchpad
Which component is essential to a light pen’s operation?
Laser-emitting diode array
Gyroscopic motion sensor unit
Photocell with optical system
Mechanical spring loader
A student needs precise pointing on a CRT-like display for drawing. Which device is most suitable?
Trackball
Keyboard
Joystick
Light pen
In laptops where desk space is limited, which pointing device often replaces a mouse?
Trackball
Joystick
Light pen
Graphics tablet
Which device primarily uses finger movement on a ball instead of moving the entire device?
Joystick
Mouse
Trackball
Stylus
Which statement differentiates a joystick from a trackball?
Joystick is half-inserted; trackball fully handheld
Joystick only clicks; trackball only scrolls
Joystick tilts a stick; trackball rotates a ball
Joystick emits light; trackball senses optics
Which statement best describes the primary role of a scanner in a computer system?
Captures paper images into editable digital files
Outputs digital photos onto glossy paper sheets
Converts audio waves into compressed sound formats
Measures screen brightness for color calibration
In the image shown, identify the input device and its typical use.
Graphics tablet used to draw with a stylus pen
Laser printer used to produce hard‑copy text pages
Barcode reader used to scan product price labels
Flatbed scanner used to digitize paper documents
What process allows a digitizer to convert real‑world signals for computer storage and manipulation?
Analog to digital conversion of continuous signals
Digital to analog conversion for speaker playback
Thermal to electrical conversion for heat sensing
Optical to mechanical conversion of light motion
Which option correctly matches device to input type?
Scanner—image pixels from paper sources
Speaker—graphical vectors from drawings
Printer—binary inputs from stylus strokes
Monitor—audio samples from microphones
A graphics tablet is best described as which kind of device?
Digitizer converting stylus motion into binary data
Output device rendering images on a display panel
Storage device saving drawings on magnetic disks
Controller device adjusting CPU clock frequencies
You need to edit a printed photo in software. Which device should you use first to bring the photo into the computer?
Projector to display the photo on a wall
Microphone to capture sound annotations
Printer to generate a new hard‑copy sheet
Scanner to create a digital image file
A camera sends a continuous video signal to a computer. Which device prepares this signal for storage as numbers?
Monitor performing light‑to‑image projection
Printer performing digital‑to‑paper translation
Digitizer performing analog‑to‑digital conversion
Scanner performing optical‑to‑print duplication
Which statement about image manipulation is accurate for scanned images?
Images must stay analog during all modifications
Images cannot be changed once scanned to disk
Images can be edited after conversion to digital
Images require printing before any adjustments
For precise drawing in design software, which device offers fine control of strokes and positions?
Barcode scanner with laser reading head
Touchscreen monitor with finger gestures
Mechanical mouse with two physical buttons
Graphics tablet with stylus as a digitizer
Which device captures sound and converts it into digital data?
Plotter
Microphone
Speaker
Projector
Which option is an output device primarily used to display visual information?
CRT monitor
Trackball mouse
Digitizer tablet
Barcode reader
Which printer type commonly uses toner and electrostatic charging to form images?
Inkjet printer
Laser printer
Dot matrix printer
Thermal printer
Which printer type sprays liquid ink through microscopic nozzles?
Plotter device
Laser printer
Inkjet printer
Dot matrix printer
Which printer uses impact pins striking an inked ribbon to create characters?
Dot matrix printer
Laser printer
Inkjet printer
Thermal ink printer
Which output device enlarges the computer’s display onto a wall or screen?
Multimedia projector
Webcam camera
Desktop scanner
Graphics digitizer
Which device is correctly classified as an input device in this topic?
Microphone
Laser printer
CRT monitor
Speakers
Choose the monitor technology that uses liquid crystals with a backlight.
Dot matrix screen
LED projector
CRT monitor
LCD monitor
Identify the output device designed for large-format graphics like engineering drawings.
Plotter
Webcam
Joystick
Barcode scanner
A classroom needs crisp text printouts at high speed. Which printer is the best choice?
Photo sublimation
Dot matrix printer
Inkjet printer
Laser printer
For a color photo assignment, which printer type is most suitable for vivid color gradients?
Inkjet printer
Laser printer
Dot matrix printer
Line printer
Which statement best differentiates speakers from microphones in a computer system?
Speakers input sound to storage
Microphones display visual output
Speakers output sound to users
Microphones output audio signals
Which device converts computer graphics to a large screen for an audience?
LCD projection panel for displays
COM device for microfilm
Plotter for vector drawings
Dot matrix printer for paper
Which list contains only output devices?
CPU, RAM, LCD panel
Scanner, microphone, plotter
Keyboard, mouse, monitor
Monitor, speakers, projector
Which monitor technology uses a cathode ray tube?
CRT display technology
LCD backlit panel
LED matrix screen
Microfilm projection
Which is a type of printer mentioned in the material?
Impact line printer
Thermal receipt printer
Photo dye-sublimation printer
Ink jet printer type
Which output device is designed to produce large-scale technical drawings?
LCD computer monitor
Laser office printer
Plotter drawing device
LED backlit display
Which monitor type typically offers thinner panels and lower power use?
Dot matrix screen type
COM microfilm type
LCD flat panel type
CRT vacuum tube type
Which output medium stores images on microfilm?
COM microfilm output
LCD projection screen
LED desktop monitor
Ink jet paper output
Speakers are classified as which kind of computer component?
Processing core unit
Storage hardware unit
Output audio device
Input sound device
Which printer is known for impact printing using a print head of pins?
Dot matrix printer type
Laser toner printer
Ink jet nozzle printer
LCD thermal printer
Which monitor type is essentially an LCD with LED backlighting?
LED display technology
CRT vacuum display
COM microfilm viewer
Dot matrix monitor
Which statement best describes an input device?
It receives data from users for processing
It displays processed data to the users
It stores data permanently for future use
It connects computers to the internet service
What is the primary role of an output device?
Translating machine instructions to be user intelligible
Translating user-friendly commands to machine format
Accepting raw data and forwarding it to processor
Providing commands to control the processor
Who typically commands an input device during computer use?
The user operates and commands it
The processor directly controls it
The operating system exclusively manages it
Network servers issue its commands
Which pairing correctly matches device type with example?
Output device — scanner
Input device — keyboard
Output device — joystick
Input device — monitor
After the processor finishes processing data, what happens next regarding devices?
Processed data is sent to an output device for display
Processed data is sent back to users via keyboard
Processed data returns to input devices for correction
Processed data remains in RAM without leaving
Compared to input devices, output devices generally have what design characteristic?
Identical complexity
More complex design
Less complex design
Primarily mechanical design
Which statement contrasts the functions of input and output devices correctly?
Both display processed data; neither receives input
Input displays information; output receives instructions
Input helps receive instructions; output helps display information
Both receive user instructions; neither displays data
Which set lists valid examples of output devices?
Speakers, printers, plotters, projector, monitor
Keyboard, mouse, scanner, graphics tablet, joystick
CPU, RAM, SSD, motherboard, power supply
Router, switch, firewall, access point, modem
Which statement best defines Optical Character Recognition (OCR)?
A device that prints characters onto physical paper quickly
A method to encrypt documents for secure transmission
A technique for compressing large image files efficiently
A process converting printed text images into editable text
What is the primary role of an Optical Character Reader (OCR) as a computer component?
Input device that reads printed text for conversion
Output device that displays converted text to users
Storage device that archives scanned image files
Processing unit that speeds up graphics rendering
After scanning a receipt, the file saved is an image. What must occur to make its words searchable in a text editor?
Print the image and rescan it at a higher DPI
Run OCR to convert image characters to machine-readable text
Increase the image resolution using graphics software
Change the file extension from .jpg to .txt manually
Which sequence describes how OCR handles characters from a printed page?
Reads magnetically, writes sectors, formats to disk blocks
Scans optically, detects characters, converts to machine code
Captures acoustically, decodes sounds, stores as audio bits
Prints digitally, compresses pixels, encrypts to binary code
You need to edit a paragraph from a paper form on your computer. Which workflow correctly applies OCR?
Photograph the page, crop image, email the file to yourself
Type the paragraph manually, save as image for storage
Scan the page, run OCR, open converted text in editor
Scan the page, save image, count words visually on screen
A student claims OCR is mainly for converting handwritten notes into audio files. What is the flaw in this claim?
OCR converts visual text into machine-readable text, not audio
OCR stores data exclusively in removable media formats
OCR is only for compressing images to reduce file size
OCR functions as an output device rather than an input
Which best describes an Optical Mark Reader (OMR)?
A keyboard detecting pressed alphabet keys
A sensor measuring paper thickness variations
A camera capturing handwritten paragraphs
A device recognizing pencil or pen marks
What typical task is OMR designed for in exams?
Transcribing spoken responses into text
Scanning barcodes on student ID cards
Recording long essay responses from students
Checking multiple choice answer sheets
OMR mainly identifies data by detecting what on paper?
Magnetic stripes near the edges
Ink color differences across pages
Embedded microchips within paper
Filled bubbles or marked positions
Which scenario best fits OMR use in schools?
Teachers project slides on a screen
Students fill bubbles with pencils
Students type answers on laptops
Staff print certificates for awards
Which statement about OMR processing capacity is accurate?
It handles a dozen forms per week
It processes forms exclusively during nights
It can only scan one sheet per day
It can process hundreds or thousands hourly
Which step typically follows students marking OMR sheets?
Sheets are mailed to each student
Marks are photocopied for storage
Answers are retyped by an operator
Cards are fed into a grading system
What is an output device in computing?
Hardware presenting processed results
Battery providing portable electrical power
Software storing raw unprocessed data
Cable connecting input peripherals
Which phrase captures the core role of an output device?
Converts electronic information to human-readable form
Encrypts network packets for secure transmission
Captures physical signals for digital conversion
Allocates memory addresses during computation
Which of the following best contrasts input and output devices?
Input captures data; output communicates results
Input stores files; output deletes records
Input prints pages; output scans photos
Input cools hardware; output heats components
A survey uses bubble sheets completed with pencils. Which technology should be chosen to quickly collect responses?
Touchscreen kiosks at each desk
Barcode readers for every question
Optical Mark Recognition system
Voice recognition and transcription
What does MICR primarily enable when processing bank cheques?
Reading codes with magnetic ink
Scanning photos on cheques
Encrypting cheque amounts securely
Printing cheques with laser toner
Which information is printed in magnetic ink on cheques for machine reading?
Bank code and cheque number
Payee name and address
Signature and date line
Account balance and interest rate
A bank faces high daily cheque volumes and frequent manual entry mistakes. Which solution best reduces errors while keeping speed high?
Hire more clerks for typing
Store cheques in paper archives
Adopt MICR readers for codes
Switch to handwritten ledger books
Why does MICR use a special ink containing magnetic particles on cheques?
To improve color printing quality
To make characters machine readable
To prevent paper from tearing
To add fragrance for security
