Video Types, Connectors, Audio, Video

 Video Types & Connectors

This post will help those taking the CompTIA ITF+ and A+ exams

Our goal is to show a visual representation of the connectors, whether they use analog or digital signals, and if they provide video only or video & audio.

Composite video provided video and audio. The video signal was analog only. The connecting cables are called RCA connectors.

The VGA (Video Graphics Array) provided an analog signal for video, no audio, The connector has 15 pins.

DVI (Digital Visual Interface) is used for video only. The connector dictates what signal is being provided. 

DVI-A signal is analog only

DVI-D signal is digital only

DVI-I can be used with either analog or digital signals.

DisplayPort provides a digital signal for video and audio. A dual monitor setup can be used with a single DisplayPort connector on the PC. The monitors can be daisy-chained.

Thunderbolt provides both video and audio in a digital format. Just like DisplayPort it only needs one port for dual monitors. Thunderbolt is also used for data transfer.

HDMI delivers both video and audio in a digital format.