As you might expect, more memory will be needed if you work with very large files. Help : About (in each program) provides information about the program's memory usage.
If you have a pre-Pentium Windows computer or use a version of Windows which doesn't support the current version of Java (like DOS or Windows 3.1), we recommend you stick to the DOS versions of our programs (sorry).
Disk Space - The minimal installation of CoPlot (from the web site) is about 65 MB (55 MB for Java + 10 MB for CoPlot). The CD installation (which includes all the map data files and icon libraries) is about 85 MB (55 MB for Java + 30 MB for CoPlot).