Download X- windows from Boston University web-Site (With B.U Id) for your personal computer such as Laptop or Desktop 
to work on SAS. Don't worry if you don't have a Computer at all, BU computer Center has X-Windows and there just type SAS. 
It will be very similar to the one that I use for Windows.
The site details : http://www.bu.edu/pcsc/unixlinux/xwinconfig/. After clicking on to this link you can download
 X-windows and work SAS from Home itself. Any questions please mail me.