Which input device reads black-and-white striped codes commonly found on retail products?
Correct answer: D
A barcode reader scans printed barcodes to quickly retrieve associated product data.
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Which technology is used to automatically read pencil or pen marks on forms, like answer sheets?
Correct answer: D
OMR technology detects the presence of marks in predetermined positions, commonly used for answer sheets.
Which technology converts scanned images of printed or handwritten text into editable digital text?
Correct answer: D
OCR converts images of text into machine-readable, editable text.
Which technology reads special magnetic ink characters, commonly used on bank cheques?
Correct answer: A
MICR is used mainly in banking to read the special characters printed on cheques.
Which input device is used by artists and designers to draw directly with a pen-like stylus?
Correct answer: C
A graphics tablet lets users draw or write using a stylus, translating movement into digital input.
Which technology uses radio waves to identify and track tags attached to objects?
Correct answer: B
RFID uses radio waves to wirelessly identify and track tagged objects.
Which device converts an analog signal, such as sound or light, into digital form for computer use?
Correct answer: D
Sensors detect physical phenomena and convert them into signals a computer can process.
A device combining a scanner, printer, and copier into one unit is called a(n):
Correct answer: A
A multifunction printer combines several capabilities such as printing, scanning, and copying.
Which input device is specifically designed to convert handwriting or drawings into digital vector data?
Correct answer: D
A digitizer converts handwritten or drawn input into precise digital coordinates.
A light pen is primarily used to:
Correct answer: A
A light pen is a pointing device used to interact directly with a compatible display screen.
Which of the following would be classified as an input device?
Correct answer: D
A keyboard sends data into the computer, making it an input device, unlike monitors, printers, or speakers which output data.
Which device visually displays computer output, such as text and images?
Correct answer: C
A monitor is the primary visual output device of a computer.
Which device produces a physical, paper copy of digital documents?
Correct answer: C
A printer produces a hard copy of digital content on paper.
Which output device converts digital audio signals into audible sound?
Correct answer: D
A speaker converts electrical audio signals into sound we can hear.
Which output device is used to print large-scale technical drawings, such as blueprints or maps?
Correct answer: A
A plotter is designed to print large, precise vector graphics such as engineering drawings.
Which type of printer sprays tiny droplets of ink onto paper to form an image?
Correct answer: B
An inkjet printer forms images by spraying microscopic ink droplets onto paper.
Which type of printer uses a laser and toner powder to produce sharp, fast printouts?
Correct answer: B
A laser printer uses a laser beam and toner to produce high-quality prints quickly.
Which older type of printer uses a matrix of pins striking an ink ribbon to form characters?
Correct answer: A
A dot-matrix printer forms characters using pins that strike an ink ribbon against paper.
Which type of printer uses heat to produce an image, commonly seen in receipt printers?
Correct answer: A
Thermal printers use heat on special paper, commonly used for receipts and labels.
Which output device projects computer images onto a large screen or wall?
Correct answer: D
A projector displays computer output as an enlarged image on a screen or surface.
Which technology is used in most modern slim computer monitors, using liquid crystals?
Correct answer: A
LCD technology uses liquid crystals to produce images and is common in modern flat monitors.
Which older, bulkier monitor technology used a vacuum tube to produce an image?
Correct answer: B
CRT monitors used a cathode ray tube and were the standard before flat-panel displays.
Which display technology uses light-emitting diodes for backlighting, offering better efficiency than standard LCD?
Correct answer: C
LED displays use light-emitting diodes for backlighting, improving on standard LCD efficiency.
A braille embosser is an output device primarily designed for:
Correct answer: C
A braille embosser converts digital text into raised braille dots for the visually impaired.
Which of the following would be classified as an output device?
Correct answer: B
A monitor displays information from the computer, making it an output device, unlike input devices like keyboards or mice.