| Macintosh II (Mac II) A version of 's , released in March 1987, using the , which runs at a higher than the used in the original Mac. The Mac II has a full 32-bit data bus instead of a 16-bit bus. Mac II models have built-in 40 to 160 megabyte and can take up to eight megabytes of (and more as denser memory chips arive). The Mac II was the first Macintosh to provide a colour graphics option, with up to 256 colours on screen at a 640x480 resolution. Mac II models are designed for expandability with three () or six (II & IIx) built-in for additional and boards. (1996-05-25) |