[ edit ] System software=== 3 MB ROM version 7.7.D (version number on ROM boards is development 1.1, 1.2; production 1.3). Runtime environment derived from System 7 , System 7.5.2 (if used, Enabler 1.1). PowerPC native version of QuickDraw . Reduced system memory footprint (most computer extensions features removed). Disk-resident System Software