Macintosh II series

The Macintosh II series (or sometimes simply Mac II series) was a series of personal computers in Apple's Macintosh line.Unlike prior Macintosh models, which were all compact Macintosh designs, the Macintosh II models were "modular" systems which did not include built-in monitors and were expandable. Beginning with the Macintosh II and culminating in the Macintosh IIfx, the Mac II series was Apple Computer's high-end line from 1987 until the introduction of the Motorola 68040-based Macintosh Quadra computers in 1991.The II series introduced NuBus which would become the standard expansion bus for the entire Macintosh line for almost a decade. The Mac II models were the first to support color displays and display resolutions larger than the 512×342 of the compact Macintosh design.