How does an ultrasonic sensor detect objects?

Which input device allows users to provide spoken commands to a computer?

What type of card is commonly used with chip and pin technology?

Which of the following statements is true about voice recognition systems?

What is the purpose of a number pad?

What is the purpose of a touchpad?

What is a touch screen?

Which country first developed QR code technology?

Which security feature is used in NFC transactions?

What types of documents can be scanned?

Which technology does NFC rely on?

Which technology is commonly used as an alternative to magnetic stripe readers?

How do temperature sensors work?

Which of the following is an example of a magnetic stripe reader application?

What is the advantage of using automated input devices?