Are there minimum requirements to sync a Garmin GPS device to getamap?
But you don’t need the Garmin Communicator plugin to get routes and tracks into and out of a Garmin device. Get-a-map can be used to save a route to a file, then, depending on the Garmin device in question, it can just be copied onto the device mounted as mass storage, or uploaded via any of several third party programmes, for instance Gpsbabel.
If you want to use a Garmin GPS device to import and export routes in getamap, there is a minimum specification for the Garmin Communicator plugin. The latest version is v2.9.2 which requires an IBM-compatible PCs running Windows® 7, XP or Vista with Internet Explorer 6+, Firefox 1.5+ or Google Chrome, or an Intel-based or PowerPC G4 or later Mac OS 10.4 or later with Safari 3+.