No, it’s still black. Nope. Not yet. That’s not it.

You’ve connected your laptop to an LCD projector, but your video isn’t displaying through the projector. What laptop key is often combined with the “CRT/LCD” key to control the video output?

A) Ctrl

B) Fn

C) Alt

D) Windows

E) Can everyone just crowd around my laptop screen?

The answer: B) Fn key

The laptop function key (Fn) is usually combined with another laptop key to control features such as volume, wireless adapter functionality, and video output. This allows the laptop developers to add additional functionality to the laptop keyboard without adding any physical keys or switches.

Want to know more? Watch “Laptop Input Devices.”

There is a wealth of Windows utilities that can be run directly from the command line or launched from the Start menu. In this video, we’ll examine utilities like telnet, ping, msconfig, dxdiag, and many more.