System 7.1.2 was the first version of the Macintosh system software for Power Macintosh computers; this accompanied the first-generation Power Macs (Power Mac 6100, 7100 and 8100). Despite this being the fact, the whole system was not fully or substantially rewritten to be more "Power Mac-native" or contain more "native" code to warrant much of a speed boost. As a matter of fact, a mere 10% - 15% of the system became native, but those that did were the parts used most frequently, according to Apple.