Working from your own computer:

If you are using Windows operating Syatem you may download PUTTY from the site:

http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html

Double ckick on Putty Icon 
then  type one of these computers in the location for

Host Name:

point.math.ucdavis.edu
or
round.math.ucdavis.edu

Make sure ssh is selected.

Then click open

then type your username  press "enter"
then type your password press "enter".

this terminal session is the same as the one you get in lab. 
Note in the lab you have to type "ssh point" You do not to type this when using PUtty.