This is when you need an HDMI switch, a splitter, or both

A splitter allows a single peripheral to output to multiple displays.
Indiatimes

Power Bank With Dual Input Ports To Charge Up Two Devices At A Go

In today’s technology-driven world, having a bit of extra power supply is always convenient. So, get a power bank with dual ports that allow you to charge your device multiple times and also to charge ...
BND

Hooking up old VCRs to new HDTVs should be easy

A. If the back of your television looks anything like my 60-inch Panasonic, the task may seem intimidating. You probably see a mind-numbing array of input ports that take various kinds of cables. On ...
EDN

Feedback Circuits and Two-Port Blocks, Part 1: From Circuits to Blocks with Ports

What is hard about analyzing feedback circuits is the extraction from the circuit diagram of the simple block diagram found in active circuits and control textbooks. To start with a relatively easy ...

3 Common Myths About HDMI Ports Debunked

Not all HDMI ports are created equal, though that is a common misconception for folks who may not be a display tech enthusiast who just got a new TV.
XDA Developers on MSN

Not all TV HDMI ports are created equal, and I found out the hard way

With the majority of TVs, the settings for each individual HDMI input can be changed, and high-bandwidth ports that are HDMI ...
Inverse

These ports make Apple's new MacBook Pros a lot more convenient

I think we speak for everyone when we say: “Death to the dongle.” Ports might not be the sexiest feature, but if you’ve ever used a dongle, you know just how critical they can be. Luckily, Apple is ...