What kind of connector is most commonly used for audio output?



What kind of connector is most commonly used for audio output?

A) 1/8” (3.5 mm) connector

B) 9-pin Serial

C) PS/2 Mini DIN

D) Centronics Parallel


Answer: A) 1/8” (3.5 mm) connector

The 1/8” connector jack is one of the most common auto input and output connectors on a computer, and it’s fits perfectly with the industry standardization and the small form-factor needed on a computer system.

The incorrect answers:

B) 9-pin Serial
Serial ports are generally used for low-speed communications to analog modems and some (very) old printers.

C) PS/2 Mini DIN
The PS/2 mini DIN connectors aren’t used much on newer computers, but they dominate the keyboard and mouse connectors of the previous generation of computers.

D) Centronics Parallel
Centronics connectors on parallel ports are almost always seen on a printer, and not on a computer system or motherboard itself.

Want to know more? Watch “Common Computer Ports.”


The connections into a PC are as varied as the components themselves. Fortunately, there are a number of standardized ports that are common across all computer makes, models, and manufacturers. In this video, we’ll look at the most common connector types and show you what type of components use these ports.