Excerpt - page 2: " ... sys- tem runs on a single PowerPCProcessor Element (PPE), and the high-speed calculation is performed by a series of Synergistic Processor Elements (SPEs"
Excerpt - page 11: "Then came the PowerPC era, which lasted from about 1994 to 2005. Now, fast forward to the present, where Macs use processors made ... Intel. If you have an older Mac, it might use a PowerPC or Intel processor"
