Input Devices Quiz

What is the primary function of a barcode reader?

• To input text in computing

• To convert sound into digital signals

• To scan barcodes for identification

• To capture images and videos

Which of the following is an advantage of QR codes over traditional barcodes?

• QR codes are easier to print

• QR codes can hold more information

• QR codes are less expensive

• QR codes require special scanners

What technology do optical mice use to track movement?

• Bluetooth connectivity

• LED technology

• Infrared sensors

• Mechanical gears

Which input device is primarily used for text input?

• Microphone

• Digital Camera

• Scanner

• Keyboard

What is a disadvantage of QR codes?

• They are more expensive to produce

• They can transmit malicious codes

• They can be read by any camera

• They hold less information than barcodes

What is the main use of a digital camera?

• To control cursor movement

• To capture images and videos

• To scan documents

• To input sound

Which input device can convert sound into digital data?

• Microphone

• Scanner

• Optical Mouse

• Keyboard

What is the primary function of a scanner?

• To convert physical documents into digital formats

• To track movement

• To input text

• To capture sound

Which technology is NOT commonly used in touchscreens?

• Capacitive

• Infrared

• Laser

• Resistive

What is a key advantage of using barcodes in retail management?

• They are more complex to implement

• They allow for automatic stock control

• They require manual price updates

• They are only used for food items