Question

which group includes both an input and an output device?
printer and speakers
digital camera and speakers
keyboard and mouse
scanner and microphone

Explanation:

• Analyze each option:
• "Printer and speakers": Both are output devices (printer outputs documents, speakers output audio).
• "Digital camera and speakers": Digital camera is an input device (captures images/videos to input to a computer), speakers are output devices (output audio). So this group has one input and one output device.
• "Keyboard and mouse": Both are input devices (keyboard inputs text/commands, mouse inputs navigation commands).
• "Scanner and microphone": Both are input devices (scanner inputs documents/images, microphone inputs audio).

Answer:

B. Digital camera and speakers