The minimum system requirements for Adobe® Digital Editions are as follows.
Microsoft® Windows® 2000 with Service Pack 4, Windows XP with Service Pack 2, or Windows Vista™ (32- and 64-bit editions supported)
Intel® Pentium® 500MHz processor
128MB of RAM
800 x 600 monitor resolution
Mac OS X v.10.3.9 or 10.4.8
PowerPC® G4 or G5 500MHz processor
128MB of RAM
Note: Mac OS X v.10.5 is not yet supported.
Mac OS X v.10.4.8
500MHz processor
128MB of RAM
Note: Mac OS X v.10.5 is not yet supported.