This version of WordSmith Tools is designed for machines with:
•at least 1GB of RAM
•at least 200MB of hard disk space
•Windows™ XP or later, or an emulator of one of these if using an Apple Mac or Unix system.
You can run WordSmith from a memory stick on a fast computer better than on a slow computer. (You can run WordSmith on a tiny 10" screen laptop with Windows Starter and little power but all applications on those are slow and there is not much screen for your results.)
There is no Apple Mac version but see http://lexically.net/wordsmith/mac_intel.htm for details on how to use WordSmith on a Mac.