Which of the following are examples of interfaces that do not require a keyboard?

Show Answers

bar code scanning, optical character recognition, stylus input, and speech recognitioncomputer mouse, optical character recognition, stylus input, and speech recognitionphysical keyboard, optical character recognition, stylus input, and speech recognitionall options listed above

Explanation

Option A lists interfaces that operate without the need for a traditional keyboard, such as bar code scanning, OCR, stylus input, and voice recognition. Options B and C include devices like the mouse and keyboard, which are not keyless interfaces. Therefore, the correct answer is A.