Originally Posted by Wile E
Hardware wise they use the same components used in PCs. In fact, in the Mac Pro, the hardware is superior to most people's PCs, due to the fact that it uses S771 server hardware. In the Air for example, it uses a cpu that hasn't even been released to the public yet, and that no other computer uses at this time. It's part of a future product line.
That's not the first time they got a deal from Intel, either. When they released the first octo-core Mac Pro, they used Xeon chips that had not been used yet. And the 2.8GHz C2D Extreme CPU in the 24" iMac was used a few months before it was released to other OEMs.
I've been using Mac exclusively (except for games) for almost two years now, and have never encountered a virus or spyware. Even on PCs when I do use them, and for the countless years before I switched to Mac, I encountered maybe two viruses and a lot of spyware, but spyware was easily removed. I run an anti-virus in Windows regardless, but I still don't feel threatened using either OS because I'm smart about browsing.