What’s behind port number 3?

You need to purchase a USB cable to charge your new mobile phone. Which kind of USB port would you commonly see on a desktop computer?

A) Type A

B) Type B

C) Mini B

D) Mini DIN

E) The weird looking square one. Or is it round?

The answer: A) Type A

Type A USB ports are common seen as USB connections on desktop and laptop computers.

Want to know more? Watch “I/O Interfaces.”

If you look at the back of any computer, you’ll find many different ports staring back at you. In this video, you’ll learn to recognize some of the most common motherboard ports and connectors, including audio ports, video ports, and communication interfaces.