AmigaFax requires AmigaDOS version 1.3 or greater. It operates with AmigaDOS 2.0, and will run on Amigas from the original A1000 through to the A3000. It is possible to run on an unexpanded A1000 with 512K RAM and 1 disk drive, but in this case memory and disk restraints will limit the number and size of faxes that may be generated or received. In general the more memory and disk available the better. For unattended Auto-receive operation a hard disk system is highly desirable.