U1.T1 (input devices) quizz

What is the primary function of an input device?

• To display information from the computer

• To store data for future use

• To allow interaction between the user and the computer

• To enhance the audio quality of the computer

How does a barcode scanner work?

• By detecting touch inputs

• By emitting sound waves

• By shining a red laser to read barcodes

• By capturing images through a lens

What advantage do digital cameras have over traditional film cameras?

• They require film to capture images

• They offer lower image quality

• They are more expensive to maintain

• They allow for instant viewing of photographs

Which technology does an optical mouse use to track movement?

• Bluetooth connectivity

• A red LED and sensor

• A rolling ball

• Infrared sensors

Which input device is commonly used for gaming and navigation in a GUI?

• Barcode scanner

• Optical mouse

• Microphone

• Digital camera

What is a significant advantage of using microphones in security systems?

• They are used to scan fingerprints

• They provide lighting in dark areas

• They can detect unauthorized access through sound

• They can visually record events

How do QR codes differ from traditional barcodes?

• They can store more information

• They are less secure

• They cannot be scanned by smartphones

• They are only used for websites

What is a unique feature of capacitive touch screens?

• They can be used with any object

• They require a stylus for operation

• They work better with gloves

• They support multi-touch inputs

Which of the following is a characteristic of resistive touch screens?

• They support multi-touch

• They are activated by any object

• They have the highest image clarity

• They require a capacitive stylus

What is the main use of 3D scanners?

• To track movement through infrared

• To scan barcodes at supermarkets

• To capture digital images of documents

• To create digital models of objects