Input Devices
This device detects marks on specially designed answer sheets and is commonly used for multiple-choice exams.
Optical mark reader (OMR).
This common home/office printer type uses toner and fuses it to paper for fast, high-quality text printing.
Laser printer.
A small, removable flash-based device used to transfer files between computers via USB.
USB flash drive.
Which input device from the list would be most appropriate at a supermarket checkout to quickly read product information?
Bar code reader (barcode scanner).
A device that reads printed characters (like typed text) and converts them into machine-readable text; often used to digitize paper forms.
Optical character recognition (OCR) device / character reader. (MICR is for magnetic ink character recognition on checks.)
A mechanical printer useful for continuous-feed forms and receipts; it strikes an ink ribbon against paper.
Dot matrix printer.
A spinning magnetic-disk drive commonly found inside many desktop PCs (abbreviation).
HDD (hard disk drive).
Which output device is best for printing a glossy, high-quality photograph at home?
Inkjet printer.
A handheld pointing device used for gaming that often has extra buttons and enhanced precision compared to a standard mouse.
Joystick (gamepad or specialized gaming mouse could be discussed).
A device that creates three-dimensional solid objects by layering materials based on a digital model.
3D printer.
A solid‑state storage device with no moving parts that is faster and more shock-resistant than older spinning drives.
SSD (solid-state drive).
For an ATM machine, name one input device and one output device from the lists that are essential for user interaction.
Input: keypad/keyboard (for PIN) or touch screen; Output: screen/display and printer or receipt printer. (Accept ATM-specific answers: touch terminal, touch screen, keypad; output: display, speakers, receipt printer.)
This device captures still images or video and can be built into phones or connected to a computer for video calls.
Digital camera / webcam.
Often used in engineering and design to create large, precise diagrams of schematics and maps.
Plotter.
An online service where files are saved on remote servers and can be accessed via the internet
Cloud storage
For a self-service restaurant ordering kiosk with a touchscreen, which input device and which audible output device would make the system accessible to users with visual impairments?
Input: Touch screen (with accessible interface); Audible output: speakers or headphones/headset for audio prompts. (Also could include voice response unit for spoken guidance.)
A system that uses unique physical or behavioral traits (fingerprints, facial recognition) to verify a person’s identity before granting access.
Biometric systems (e.g., fingerprint scanner, facial recognition).
A media that stores tiny photographic images of documents on film and is often used for archiving large volumes of records.
Microfilm.
A high-capacity magnetic tape or other medium used for long-term archiving of backups in large organizations
Magnetic tape
For a hospital patient-monitoring system that must detect patient movement, vital signs, and control access, name two input devices and one biometric-related device from the lists that would be suitable, and briefly explain why each is appropriate.
Inputs: sensors (for movement/vital signs), sound capture (for monitored audio alarms) or biometric sensors; Biometric-related device: fingerprint scanner or biometric system for access control. Explanations: sensors provide continuous monitoring, biometric systems ensure secure access, and specific sensors (e.g., heart-rate sensors) detect vitals.