what operating system should i use?

[little b]

There is an expert using Adobe PageMaker on a Macintosh
computer. The expert has to use the same program as
everyone else, that is Microsoft Office. What opperating
system should be used in this situation?

 

[Mickey Stevens]

He should probably stay on the operating system he is on unless there are
specific features you need in the latest version of Office, which only runs
on OS X.

Office 2001 works on OS 8.1-9.x, and Office X works on OS X 10.1-10.2.x.
The specific system requirements for Office X and Office 2001 are here:
<http://www.microsoft.com/mac/howtobuy.aspx?pid=sysreq>

If you provide more details perhaps we can help out more.