COG stands for Computer Operations Group. They are the ones who keep all the CS machines running. When there are problems, they solve them for us.
They also install the software that we need, and maintain information on what software is installed on our machines, and how to use it.
This information is available on-line at https://intranet.cs.nmsu.edu/wp/cog. These pages are very valuable, and you should get used to finding things on them.
Notice that you need to enter your username and password when entering these pages. This is because these pages are meant for NMSU CS people only, and can be dangerous to others!
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