If you have been a Mac user for a long time, then you might have some fond memories of older Macs like I do. There have been lots of Macs over the years, but only a few of them were paradigm shifting machines. The Mac II was one of those important machines because of its open architecture, its upgradeability. This article describes the Mac II in all its glory and why it was such a big deal. If you enjoy Mac history, check out the article.