Which of the following is an output device?
O
O
O
A. Scanner
B. Speakers
c. Microphone
O
D. Keyboard

Which network media uses different regions of the electromagnetic spectrum to transmit signals through air? uses different regions of the electromagnetic spectrum to transmit signals through air.

Selling a product through an electronic medium is

What key should you press and hold to select and open multiple files at one time? enter alt control esc