As Star Trek: Armada II is a game from the older days its system requirements are rather low which is in staight contrast to Armada II: Fleet Operations. Due to significant graphical improvements the game's system requirements have changed a lot.

System Requirements für Armada II: Fleet Operations  

Minimum:

Pentium 4 (2.5 GHz) or Athlon 2000+
512 MB RAM
Windows XP
256 MB Video Card
CD-ROM drive
1 GB hard-disk space

Recommended:

Athlon 3000+/Pentium 4 (3 GHz)/Core 2 Duo (1.8 Ghz) and higher
1 GB RAM
Windows XP/Vista
256 MB dedicated Video Card or better
LAN or broadband internet connection for multiplayer