In order to view the homework assignments you will need the postscript viewer ghostview (GSview), which can be downloaded for free from this link. Ghostview is available for most operating systems (WINDOWS 9X/NT, MacOS, linux, OS2,...) Note ghostview is already installed on the physics department's workstations. For some of the documents for other sites you will need Abode Acrobat reader. Acrobat is available for the same set of operating systems as Ghostview. It can be downloaded for free from link