What does a CNR expansion slot provide?

Once of your computers has a CNR expansion slot. What capability does a CNR expansion slot provide?

A) High-speed video interface

B) Standard interface for a communications module

C) Standard mouse and keyboard interface

D) Memory module interface

The answer: B) Standard interface for a communications module

The Communications and Networking Riser interface was created as a standard for smaller devices such as modems and networking cards. These interfaces have eventually been phased out as the devices have been embedded directly onto the motherboard.

Want to know more? Watch “Expansion Slots.” The expansion slots are the most modular part of the PC motherboard, but what are all of these different standards? This module will walk you through the most popular expansion slot bus types, such as PCI, PCIe, and AGP. Some older technologies, such as AMR and CNR will also be detailed.