Which of the following is NOT a common use of QR codes?

Which type of device commonly includes a number pad?

Which technology is commonly used for contactless payment systems?

Which of the following is a benefit of using a document scanner?

What are some potential challenges of voice recognition systems?

How do temperature sensors work?

What are the potential future advancements in voice recognition systems?

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

What is the purpose of a trackball?

What is the purpose of automated input devices?

Which of the following is not a touch gesture?

How does a gas sensor work?

Which of the following is NOT a potential use of voice recognition systems?

What is the main advantage of using a magnetic stripe reader?

What is the full form of CCD?