If you purchase an independently reviewed product or service through a link on our website, Rolling Stone may receive an affiliate commission. One of the biggest changes to computers — especially ...

So you want to share photos, watch videos, or play computer games on the expansive screen of your HDTV? On one hand, this is a really simple how-to: use HDMI! That, of course, isn't the whole story.

A single video card that supports a dual-monitor setup can handle running two screens at the same time: it is not necessary to have two video cards to run two monitors on one computer. Video cards ...