Memory
Windows XP - 512 MB RAM (32-bit), 2 GB RAM (64-bit), Windows 7 and 8 - 1 GB RAM (32-bit), 2 GB RAM (64-bit), Mac OS X v10.5, v10.6, v10.7: 256 MB RAM
Operating System
Windows: XP (32-bit SP2) Vista (32-bit 64-bit) 7 (32-bit 64-bit) 8 (32-bit 64-bit) Server 2003 (32-bit SP3) Server 2008 (32-bit 64-bit) Mac OS X: v10.5.8 v10.6 Linpus Linux: 9.4 9.5 Red Hat Enterprise Linux 5.0 SuSE Linux (10.3 11.0 11 11.1 11.2) Fedora (9 9.0 10 10.0 11.0 11 12 12.0) Ubuntu (8.04 8.04.1 8.04.2 8.10 9.04 9.10 10.04) Debian (5.0 5.0.1 5.0.2 5.0.3)
Hard Drive
Windows 7 and 8 - 200 MB Free Hard Disk Space Mac OS X (v10.5 v10.6 v10.7): 300 MB Free Hard Disk Space Windows XP (32-bit) (SP2): 200 MB Free Hard Disk Space
Processor
Windows 7 and Windows 8: 1 GHz Processor Windows XP (32-bit SP2): Pentium Processor 233 MHz Processor Mac OS X v10.5 v10.6 v10.7 - Power PC G4 G5 Intel Core Processor