For workstations, VSys One requires Windows 2000, Windows XP, Windows Vista or Windows 7. Each machine must have at least 512MB (1GB for Vista, 2GB for Windows 7) of memory, a display configured for 1024x768 or higher, and should have a 1GHz or faster CPU. These are the minimum requirements. We recommend 1GB (1.5GB for Vista, 2.5GB for Windows 7) of memory. A higher speed CPU will make your experience faster, and a better display lets you show more information on the screen at once, which is especially useful on some of VSys One's more complex screens.