Macintosh II
(Mac II) A version of {Apple}'s {Macintosh}
{personal computer}, released in March 1987, using the
{Motorola 68020} {CPU}, which runs at a higher {clock rate}
than the {Motorola 68000} 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 {hard disks} and can
take up to eight megabytes of {RAM} (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 ({Macintosh IIcx}) or six (II & IIx) built-in {NuBus}
{expansion slots} for additional {peripheral} and
{coprocessor} boards.
(1996-05-25)